Get the following Killstreaks to unlock the corresponding rewards:
KILLSTREAK - REWARD
3 - UAV (Reveals enemies on minimap)
4 - Care Package (ammo / killstreak air drop)
4 - Counter UAV (disable enemy maps)
5 - Sentry Gun (airdropped)
5 - Predator (directed missile)
6 - Precision Airstrike (choose a location to bomb)
7 - Harrier Strike (choose a location to bomb and defend with a Harrier)
7 - Attack Helicopter (helicopter backup)
8 - Emergency Airdrop (four ammo / killstreak air drops)
9 - Pave Low (armored helicopter backup)
11 - Chopper Gunner (operate a helicopter gun)
11 - AC130 (operate a plane gun)
15 - EMP (disable enemy electronics)
25 - Nuclear Strike (kills everyone)
Die the following number of times in a row without a kill in multi-player mode to unlock the corresponding bonuses:
DEATHSTREAK - REWARD
3 - Painkiller (health boost when you spawn)
4 - Martydom (drop a live grenade just after dying)
4 - Copycat (steal your killer's class in killcam)
4 - Final Stand (get back up after being wounded)
Reach the following levels in Multiplayer mode to unlock the corresponding equipment:
L86 LSW(Machine gun)
CheyTac Intervention(Sniper rifle)
UMP .45(Submachine gun)
PP-2000 machine pistols(Secondary weapon)
M4A1 carbine(Assault rifle)
Barrett .50 caliber(Sniper rifle)
Thumper x2 (Grenade launcher)
Glock 18(Secondary weapon)
AUG HBAR(Machine gun)
M93 Raffica(Secondary weapon)
Mini Uzi(Submachine guns)
M21 EBR(Sniper rifle)
Additional Custom Class slots:
To unlock additional Custom Class slots, you must first unlock Prestige mode by reaching level 70 in Multiplayer mode. Unlock the following Custom Class slots by reaching the corresponding prestige levels:
CUSTOM CLASS SLOT - PRESTIGE LEVEL
6th Custom Class slot - First Prestige
7th Custom Class slot - Second Prestige
8th Custom Class slot - Fourth Prestige
9th Custom Class slot - Seventh Prestige
10th Custom Class slot - Tenth Prestige
Unlock the following Professional perks by performing the corresponding tasks:
PERK - HOW TO UNLOCK
Bling Pro - Get 200 kills using a weapon that has two attachments. This will allow you to use two primary weapon attachments and two secondary weapon attachments.
Cold-Blooded Pro - Destroy 40 enemy Killstreak rewards with the Cold-Blooded perk. This allows you to be undetectable by UAV, air support, sentries, and thermal imaging. It also removes the red crosshair or name when you are targeted.
Commando Pro - Get 20 melee kills with the Commando perk. This will increase melee distance and you will not take damage when falling.
Danger Close Pro - Get 100 kills with explosives with the Danger Close perk. This will increase explosive weapon damage and extra air support damage.
Hardline Pro - Get 40 Killstreaks with the Hardline perk. This changes Killstreak rewards to require one less kill and Deathstreak rewards to require one less death.
Lightweight Pro - Run 30 Miles with the Lightweight perk. This will make you move faster and quickly aim after sprinting.
Marathon Pro - Run 26 Miles with the Marathon perk. This will give you unlimited sprint and allow you to climb obstacles faster.
Ninja Pro - Get 50 close range kills with the Ninja perk. This will make you invisible to heartbeat sensors and silent footsteps.
Scavenger Pro - Resupply 100 times with the Scavenger perk. This will allow you to resupply from dead enemies and get extra magazines.
Scrambler Pro - Get 50 close range kills with the Scrambler perk. This will jam enemy radar nearby and delay enemy claymore explosions.
Sitrep Pro - Destroy 120 detected explosives or tactical insertions with the Sitrep perk. This will allow you to detect enemy explosives, tactical insertions, and loud enemy footsteps.
Sleight Of Hand Pro - Get 120 kills with the Sleight Of Hand perk. This will allow you to reload and aim faster.
Steady Aim Pro - Get 80 hip fire kills with the Steady Aim perk. This will increase your hip fire accuracy and allow you to hold your breath longer.
Stopping Power Pro - Get 300 Kills with the Stopping Power perk. This will increase damage given to enemies and enemy vehicles.
To unlock the following Ghillie camouflage suits, beat the "Ghillie In The Mist" challenge in Multiplayer mode with the corresponding of one-shot kills with sniper rifles:
CAMOUFLAGE - HOW TO UNLOCK
Arctic camo - 50 one-shot kills with sniper rifles
Urban camo - 100 one-shot kills with sniper rifles
Desert camo - 200 one-shot kills with sniper rifles
Riot shield online XP:
You can gain as much as 50,000 XP in an online match by doing the following. Get twelve people into a lobby and kick six of them out. Make sure the host of the lobby temporarily has a bad connection so that you will become the host. Find a Search And Destroy game. Once in the lobby, find six people to join. Make the connection good again and start the match. Choose a class that has the riot shield and use the One Man Army Perk it you have it unlocked. When the match begins, get another player to fire at you while you hold the riot shield. You will get 500 XP every few seconds.
Put on the Scavenger perk and use claymores. You can put one down and when it kills someone you can scavenge his body for another. You can also scavenge when you already have one down, get another, and place it somewhere else. You can only carry one at a time but you can put down as many as desired. It works best to hold up in a room. Every time someone comes through it goes claymore, scavenge, set, and repeat.
Riot Shield mounted gun glitch:
You need a class with a Riot Shield and One-man Army. Find a mounted gun then switch your class with One-man-Army. While it is changing, get on the mounted gun. The Riot Shield will now be in front while you are on the mounted gun. This makes you impervious from the front while killing people with a mounted gun.
Enter the ceiling on "Estate":
In multi-player mode, get on the railings on the top of the stairs. Back up as much as you can, then sprint then jump in the northwest corner and you will be in the ceiling.
Leave level boundary glitch on "Hidden" Spec Op:
When you begin, take out all the guards leading up to the two Ghille snipers and jump on the bottom car on the stack next to the two guards that where talking. After you get on the first car, jump and you should get on to the second. That part is fairly easy; if you cannot get up, you are trying it on the wrong cars. Once you are in the second car, stay on the hood and do not get on the roof. There should be more cars to the right when you get up. Jump onto the hood of those, then jump onto the large metal crate. Next, jump onto the roof of the cars that were behind the cars that you where just on. Once there, jump through the top of the bush and you should be out of the level boundary. Do not be afraid of the clear ground. Walk over it and more ground will appear.
The following perks have the corresponding effects:
PERK - EFFECT
Marathon - Unlimited sprint.
Sleight of Hand - Faster reloads.
Scavenger - Resupply from dead enemies.
One Man Army - Change classes at anytime at the loss of a secondary weapon.
Stopping Power - Increase bullet damage against enemy players.
Lightweight - Move quicker.
Hardline - Killstreaks require one less kill.
Cold Blooded - Undetectable by UAVs, air support, sentry guns and thermal vision.
Danger Close - Increased explosive weapon damage.
Commando - Increased melee distance.
Steady Aim - Increased hip-fire accuracy.
Scrambler - Jams enemy radar near you.
Ninja - Invisible to heartbeat sensors.
SitRep - Detect enemy explosives and tactical insertions.
Last Stand - Fall to the ground and use your secondary weapon until you bleed out.
Bling - Two primary weapon attachments.
Museum level hint:
After completing the game, go to the single player missions and choose the bottom new mission called "Museum". When you start the level, be sure to study the layout. Get two weapons and top off the ammo with the crates supplied, then go to the desks by the entrance to the rooms. Note: There are three rooms, one of which nothing happens. On the desks there is a red bell that is labeled "Don't Press". Once you press this button, the entire museum comes to life in one room area at a time. About thirty people (all characters from the game) will try to kill you. Select a difficulty at the start. You will hear a sound once that wave is done. There are two waves of kills needed to complete it. Do not shoot anyone prior to using the bell as it will not count.
Unlock the following challenges by performing the corresponding tasks. Note: These challenges will not show in the barracks:
CHALLENGE - HOW TO UNLOCK
Never Forget - Get hurt by an enemy, survive and backstab the same enemy. 3,500 experience points.
The Loner - Get a 10 killstreak with no killstreak rewards selected. 2,500 experience points.
Infected - Get knifed by an enemy wearing this title. 1,000 experience points.
Living Dead - Survive in Final Stand long enough to get back up. 1,000 experience points.
Click, Click, Boom - Kill an enemy with C4 while you are in Last Stand (not Final Stand). 5,000 experience points.
STD - Transmission Complete (Knife an enemy wearing this title). 5,000 experience points.
The Numb - Take enough damage that would normally kill you with Painkill active. 0 experience points.
...With A Vengeance - Avenge a fallen teammate. 0 experience points.
Martyrdoh! - Kill an enemy who is priming a grenade. 0 experience points.
Ninja - Defuse a bomb right after it is planted while the planter is still alive. 2,000 experience points.
Sidekick - Get three kills with your secondary weapon in one life. 1,000 experience points.
Renaissance Man - Get three kills with three different weapons in one life. 1,000 experience points.
Radiation Sickness - Get nuked by the enemy. 1,000 experience points.
6fears7 - Select killstreak rewards requiring 7, 8, and 9 kills and earn them all. Unknown experience points.
Hard to Kill - Get 2 kills while in Last Stand or Final Stand. 500 experience points.
The Avenger - Avenge the death of 3 teammates in one life. Unknown experience points.
Point Guard - Most assists in a game. Unknown experience points.
Martyr - Get a kill with Martyrdom grenade. 1,000 experience points.
All Rounder - Complete all other challenges. Unknown experience points.
The Edge - I, II, III - Get the Game-Winning Killcam 5, 10, and 20 times. 1,000 experience points, 5,000 experience points, 10,000 experience points.
Hijacker - I, II, III - Steal 10, 50, and 200, enemy crates. 1,000 experience points, 3,000 experience points, 5,000 experience points.
If you have a Thumper, try to hit them in the head with it. This strategy is still difficult, but you will conserve ammunition. If you cannot seem to hit them with the Thumper, an even easier way is with any sniper rifle. About three to four shots in the head will take them out. Pretty much every Special Op with a Juggernaut also has a sniper rifle.
Riot shield defense hint:
While the riot shield is equipped to one of your classes, you will have cover from the rear when you are holding your secondary weapon. This is useful in narrow corridors and stairwells.
When in direct combat and you need to reload, it is much quicker to switch to a pistol or shotgun.
Cooking grenades hint:
Hold your grenades for two seconds before throwing them to eliminate the chance of having it thrown back at you.
Using teammates in campaign hint:
During the campaign will almost always have several allied team members on your side throughout the game. The teammates that are invincible are as follows: Dunn, Ghost, Foley, Makarov, MacTavish, and Price. Always let them lead the way in the battlefield. While your other teammates can die, they will almost always be replaced by reinforcements. It may be slower, but it is safer to let your teammates lead the way, especially when you are low on health and need to heal.
Making a trap:
Go online and set your killstreaks to one or more of the following: Care Package, Sentry Gun, or an Emergency Airdrop. Join a game and get the killstreak, then get into a good hiding spot. Throw your red smoke grenade (killstreak) somewhere where you can see it, then wait for an enemy to attempt to steal your killstreak but miserably fail as you will kill them if they try. Alternately, if you have unlocked claymores, you can throw your red smoke grenade (killstreak) and set a claymore by it. It is a great way to score a lot of points.
Easy Veteran completion on "Breach And Clear":
Two players are recommended for this trick. Before you breach the wall, grab a Striker and an AA-12. Once you breach, run to one of the sides with the AA-12. Keep running while killing enemies with one shot. Once you get to the part with the Riot shields, switch to the Striker and rn towards the shielders while firing. Almost every time when you use two players, one person will get to the hole and the other will either get to the exit or go to bleed out. If you bleed out, crawl past the enemies. You can't die and have about two minutes to drop to the bottom.
Nazi trucks from CoD 2 on "Endgame":
Play Campaign mode and select "Endgame" in Act 3. After exiting the caves during the speedboat chase, look at the village on the hills to the left coast. You'll notice a Nazi truck from Call Of Duty 2 behind a low wall near a pontoon and another one farther down at a jetty. Note: You will lose Shepherd by stopping to find the trucks.
Shepherd comments on "Endgame":
Toward the end of the last mission, when you are supposed to kill Shepherd with the knife, stand next to him after the helicopter crashes but do not kill him. After a while he will begin to say things such as "You know killing me won't change anything" or "You're a good warrior", trying to convince you not to kill him.
Infinity Ward Gamestation on "Estate":
Play Multiplayer mode and select"Estate" map. Look inside the home theater to find an Infinity Ward Gamestation 5 game console.
Easy completion on "Estate Takedown" Spec Ops mission:
Note: Two players are recommended for this trick. As soon as you begin you are greeted by a Juggernaut. Shoot him in the head with the sniper rifle a few times to take it out. Note: There may be other enemies, and the Juggernaut may not appear until you enter the safe house. Once the bottom floor is clear, go to the armory in the basement. If you have two players, have the person that's better at sniping collect the WA2000. Make sure you stock up on ammunition. The ammo containers are hard to find; you must search carefully for them on the right side. After you collect your guns, clear the main floor and the top floor. Once you clear the house, have the player with the sniper rifle run upstairs and go to the room to the left. Once they enter that room, go to the windows by the table with the sentry gun on it. The sniper snipes out of that window (it is located in the front of the room) while the other player guards the door while standing at the top of the stairs. Several Juggernauts will come through the front doors. Plant a claymore at the bottom of the stairs to slow them down. If your partner sees one, he or she must alert you so that you can use the sniper rifle on him. Keep repeating this until you complete the mission. If you need more claymores or ammunition, the armory is in the basement.
"3 Star" rank on "Evasion" Spec Ops mission:
As soon as the mission begins, run forward until you see the crosses or are about four or five seconds in. Go to the right side against the fence and go prone. This must be done fast so the guards do not see that you are advancing toward your beginning position. Remain prone until four guards pass by. Crawl to a better position to view the advancing guards if desired. You can get up and continue to the right after the fourth guard passes, but stay along the fence. Then, run and go under a pipeline. Ignore the few guards to the left. Move slowly and continue to the right to eventually encounter a guard and a dog that will come up the path to the left. If you run, then you will not see the guard. There is another path to the left with two guards on the far side of it. Ignore this path and continue a few more steps to get beside a tree in the middle of your current path. From this tree position you can snipe those two guards. Before rushing onward, make sure to take out the guard and his dog in a small clearing to the left. You must advance slightly along the fence for a clear shot. Once that is taken care of, you can now continue past the two guards you just killed. Go prone a few steps ahead of them. There will be a small clearing and a patrol consisting of three guards and two dogs will pass by. Slowly follow after the last guard, making sure you keep your distance or else risk them seeing you. After a short distance down the path there will be one guard and a dog stopped just past the pipeline, but on the path. Wait for them to leave before continuing. After a few more steps, go prone and wait for another guard and his dog to leave as well, but stay close to the pipeline. There will be a guard walking to your left as well going toward where you came from. Once those guards leave the area, crouch down and sneak up the bank of snow and go underneath the large pipeline. Once you move ahead enough following the pipeline, you should see two guards at the top of the hill in front of you, just after the pipeline turns to your right. Snipe them quickly and move up the hill to their position. Once on top of this hill, you will see your green smoke and can quickly slide down the other side to complete the mission.
Sniper position on "High Rise":
Look at the cranes from the center of the map, then to the left side of the map. Go to that side's back left corner. You will see broken scaffolding. Sprint from before the ledge and jump to the left outside yellow railing. Note: The railing is vertical. Climb up the hidden railing/ladder to the top of the scaffolding, then walk to the right of the scaffolding along the ledge of the building. You will eventually reach another scaffolding. Climb onto this scaffolding and walk to the top. Look towards the building and climb onto the higher ledge, then follow that ledge going left. Keep going forward and you will reach the roof. This is a very good sniper position. You may want to bring a Tactical Insertion because other players may discover you on your way to the top, or while you are up there, and toss grenades.
Get on roof on "Highrise":
Spawn on the side with the big "KREIGLER" letters and go to the other side of the "KREIGLER" letters. Notice the hanging window washer container and jump off the map towards the container, making sure to land on it as if it was ladder. Wait for a moment and make sure your character is attached to the container. Move up (as if climbing a ladder), then walk on the scaffolding to the other side of the building. Jump into that container and onto the roof. You have now successfully made it to the roof. A tactical insertion when playing in multiplayer mode is recommended.
Infinity Ward teddy bear on "The Hornet's Nest":
Play Campaign mode and select "The Hornet's Nest" in Act 2. Go to the market and look for a soccer ball on a table to the left, then walk a short distance ahead to find a television set. Break the screen to find an Infinity Ward teddy bear inside.
Blow-up doll on "Loose Ends":
Start the mission and proceed all the way until you get to the first building. After the first floor is clear, make your way upstairs to breach the doors. Breach all doors on that level until you get to the last door to breach on that floor. Once your squad has announced all clear, make your way into the bathroom, which should be to the right of the room as soon as you breach it. Look into the bathtub to find a blow-up doll with colorful stars on its chest and a circular mouth.
Infinity Ward teddy bear on "Loose Ends":
Once inside Makarov's safe house, go upstairs and look to the right. There will be a bathroom with an Infinity Ward teddy bear pinned to the wall with a knife.
Random death on "No Russian":
When you reach the end of the level where the back of the ambulance doors open, go to them as usual. As soon as they open, run away. Makarov says "No, this is the message", you will randomly die.
Quick completion under Veteran difficulty on "No Russian":
Complete the "No Russian" mission under any difficulty setting, then choose it again from the mission menu and select the Veteran difficulty setting. After the level begins, pause game play. You will be given the option of skipping the mission due to its content. Choose to do so and you will be given credit for completing it under the Veteran difficulty setting.
Easy completion on "O Cristo Redentor" Spec Ops mission:
Follow this strategy to easily complete the "O Cristo Redentor" Special Ops mission under the Hardened or Veteran difficulty setting. For every ten defeated militia, two dogs will attack you. Usually one will appear from the high ground behind the fence while the other appears from the west. For every ten defeated men, run to the white truck near your starting point. Jumping on top of this truck will cause the dogs to freeze wherever they stand. Lure them by standing on the ground. When you hear their barking geting near, leap onto the truck when they are in the vicinity. Now that they are frozen, you can pick them off wherever they stand.
Invincible pipe on "Rust":
At one end of the map is a short length pipe sticking out that, if you climb in it, you cannot be killed by kill streak explosions (for example, air strikes, Predator missiles, AC-130, etc.). The only time it can kill you is if it goes directly inside the pipe.
Easy "Three star" rank in the pit on "S.S.D.D.":
Follow this strategy for "The Pit" in Spec Ops or Campaign mode to get "three star" or "Veteran" recommendations. As soon as you begin, replace the M4A1 with the ACR Holographic. The holographic allows for precise accuracy, which takes off seconds of your actual time in the campaign. Switch the Desert Eagle pistol with the M9. If you run out of your automatic rifle ammo during the run, the M9 has more ammo to shoot before reloading. Start the mission. During the run, never stop moving, even while aiming down your sights. When shooting the cardboard enemy, only use one shot so you do not have to switch to your pistol. Moving at all times saves you a maximum of 5.7 seconds. When campaigning, accuracy saves. 3.2 seconds. Not switching to your pistol saves 0.7 seconds. This added together, without shooting civilians, can also result in completing "The Pit" in under 30 seconds.
Easy kills on "Terminal":
Enter the plane, either going up the raft-like object or from the hallway inside the building, and go inside the cockpit. Crouch in the left corner against the wall to avoid being shot through the windshield. If someone else comes in the front without noticing you, knife them. Otherwise, just shoot the people you see in the hallway coming to the plane. Never look through the doorway or else an enemy may spot you and you will most likely not have enough time to react.
Easy completion on "War Driving":
To get easy kills in "War Driving" on Special Ops, instead of starting the laptop intel transfers in the closest house on the left, start in the second closest house. This is the closest house on the right where the one sentry gun is found. First, put the sentry gun on the right side of the house where it is not in the doorway of the enemies. Get a Striker with or without RDS and keep the SCAR-H with RDS that you begin with. Set claymores near the doorway and have the Honey Badger (your armored vehicle) attack the house. Stay prone behind the counter where you can only see the garage way in and start the transfer. The sentry gun will usually take out 90% to 100% of the enemies that come through the front door. Use your SCAR to take out the ones near the driveway. If a flash bang goes off, switch to the Striker and keep shooting until your visibility returns. Repeat until the transfer is complete. Refill your ammo at the drop off, then go to the house across the street with the sentry gun. Have the Honey Badger attack the house, set up claymores, then begin the transfer. After you start the transfer, immediately run up the stairs and go prone. Move back so that you can only shoot those who go up the stairs. They will eventually disrupt the transfer. Go from prone to crouched and use the SCAR against enemies you can see in the house without moving. Then, stand up and repeat. Switch to the Striker and kill any leftover enemies in the house and resume the transfer manually. If the sentry gun wasn't destroyed, take it or go to the last house where there are two sentry guns. Place them near (but not completely) in the two doorways and go prone close behind the desk where the laptop is found. This is the hardest house. Select the side which you think has more people coming through and use your SCAR as you are prone. Make good use of your flashbangs. You can restock on grenades and flashbangs when you refill your ammo at a drop. When an enemy flashbang comes through, use the Striker and hope you shoot the correct doorway.
Easy kills on "Wasteland":
Play on Wasteland in an online multiplayer game with a Sniper class set up. For killstreaks, the Pavelow, an air strike of any kind, and sentry gun is recommended, along with the thermal scope and tactical insertions. Go to the area where the house is next to the graveyard, but do not enter the house. On the opposite side of the house, away from the graveyard, is a white wall with a mounted machine gun. Crouch behind the wall and move around until you can just barely see over it. Watch the area around the house as enemies will frequently run by. Pick them off as they do. You can get enough kills for kill streaks, then let them do the rest.
Easy Cold Blooded Pro perk:
Create the following class:
Primary weapon - Any light machine gun (except AUG HBAR) with extended magazine attachment (optional).
Secondary weapon - A launcher (not the Thumper or RPG7x2) that can heavily damage a Pavelow.
Equipment - Tactical insertion.
Special grenade - Your choice.
Perk 1 - Scavenger.
Perk 2 - Cold blooded.
Perk 3:Your choice.
Death Streak - Your choice.
Afterward, host a private match or a split-screen match. Have your friend pick Hardline and the Pavelow as one of their Killstreak rewards. Let your friend kill you enough times until they have their Pavelow. When their Pavelow is out, use your rocket launcher to hit it. If it is not destroyed the first time, use your Scavenger perk to get more rockets. Immediately after the Pavelow starts to spin out of control, take out your light machine gun and shoot at it. Each bullet that hits the spinning Pavelow will count toward Cold Blooded Pro. This way, you can easily earn Cold Blooded Pro within a five minute match.
Easy Last Stand Pro perk:
Create the following classes:
Primary weapon - Your choice.
Secondary weapon - None.
Equipment - Tactical Insertion.
Special grenade - Your choice.
Perk 1 - One Man Army.
Perk 2 - Hardline Pro.
Perk 3 - Your choice.
Death Streak - Final Stand.
Perk 3 - Last Stand
Note - Make this class built to quickly kill your enemy.
Afteward, to host a private match or a split-screen match. Have a friend that's willing to be killed multiple times. If no one is willing, then use an empty player (a controlled player with no one actually controlling it). Start with Class 1 and allow your friend to kill you until Final Stand is activated. Then, have your friend shoot you into Final Stand. Once you are in Final Stand, activate One Man Army and switch to your second class. After you get up, start killing your friend. Every kill you get will count as a Last Stand kill as well as count toward One Man Army.
Easy tactical nuke or high kill-streak:
This trick requires plenty of skill and practice. First, create the following classes:
Primary - gun of your choice, and have the grenade launcher attachment.
Secondary - One-man Army.
Equipment - Claymore.
Special grenade - Your choice (Stun recommended).
Perk 1 - One-man Army.
Perk 2 - Danger Close.
Perk 3 - Your choice.
The same as Class 1, but with C4.
Note: If you are trying to get a nuke, it is recommended that you use the kill-streaks Harrier strike, AC-130 (or chopper gunner) and Tactical Nuke.
Afterward, join a match (Domination recommended) with your Class 1 selected. Find a room with one entrance close to a flag. As soon as you enter, hide a claymore by the door or ladder. After that, switch to your Class 2 and plant C4 on the claymore. Then, use the grenade launcher to get kills out the windows while taking cover if some tries to hit you with a grenade or rocket launcher. If you run out of grenades for your launcher, use One-man Army to switch to Class 1 and get more. If notice that you get a kill from your claymore and C4, replant them. Very rarely will you only get a hit marker because of Danger Close and you are using two explosives.
While using the One Man Army perk, equip a grenade launcher to one of your guns. After you run out of grenade, use One Man Army and choose the class you were just using. You will have two more grenades for the tube. Also, everything else will refill.
Raising prestige hint:
When playing online, the first time before you prestige is basically pointless seeing as any progress you made with all primary, secondary, or any other weapon or kill streak are reset. However, after you prestige the first time, the kills and headshots you get with your primary and secondary weapons (except the riot shield) are saved via the Master and Veteran challenges under each gun. After you prestige once, you will also get the Prestige challenges, which is a separate set of challenges like Basic Training, most of which will remain if you prestige again. This tip will help not wasting hours maxing out a gun the first time to only have to do it again.
Spec Ops Juggernaut message:
Play multiplayer Spec Ops mode and play a level where a Juggernaut can be found. Have yourself or as partner walk up to him and get into last stand (bleed out), then look at the Juggernaut's crotch area to see the message "Get sum!".
Hidden face on sniper lens cover:
Play multiplayer mode and hold any sniper rifle with its primary scope. Start running in any direction, making sure the sunlight shines on the back of it. If done right, will see a green frowning face with its tongue sticking out, like the one you can receive in your accolades.
If you allow the game to idle at the main menu, trailers for the game leading up to its release will begin after a few minutes.
Find the following hidden enemy Intel laptops by searching the corresponding locations:
Act 1: S.S.D.D.
The Intel is under the watch tower, directly across from the entrance to the obstacle course.
Act 1: Team Player
The Intel is in a classroom. Someone will announce "I think I saw one go in that classroom", and your team will go in. It is located on the right wall as you enter, on a desk by the barrels.
As you exit the school, it is on a crate directly outside, next to a taxi.
Act 1: Cliffhanger
-Directly in front of you when Soap tells you to go ahead alone is a guard tower. Go up the ladder to find the Intel on the catwalk.
-Just before entering the building with Soap, go to the previous building in the alley where the Jet is inside the hanger. Break out the window to find the Intel inside.
-During the snowmobile sequence, when you are approximately 1,850m from the finish, stop. Look for a small wooden fence surrounding some trees in the middle of the path in front of you and a small wooden building up a hill to the right. The Intel is on the ground inside the fenced area with trees. Just run over the Intel to pick it up.
Act 1: Takedown
-Using the map, go towards the south-west corner when you enter the favela. You should find a motorcycle leaning against a building. In front of it, there is a building with an angled wall and a large window in the wall. Go through the door to the right of that window to find the Intel inside.
-When you go through the alley and see the building with the ladder on the wall, go up it and through the door. The Intel is on a table inside.
-Directly across from the previous Intel is a building with a small set of wooden stairs. There are a few guys inside you have to kill. The Intel is inside the building on a nightstand next to the bed.
-Towards the end of the chase, off an alley, go in the building on the right side of the path. Go downstairs to find the Intel between two beds.
Act 2: Wolverines!
-The Intel is on the counter in the gas station after you go through the alley.
-The Intel is inside CRB Financial (across from Nate's Restaurant), near the front door, under a sign labeled "Online Banking".
-The Intel is on a table inside Taco To Go. Enter the building through the blown up corner.
-The Intel is inside a dumpster (in a small brick enclosure) on the east side of Burger Town. It is visible from the Burger Town roof ladder.
Act 2: The Hornet's Nest
-Near the beginning, after you move forward from the first building, go inside the house to the right of where Soap stops in the road (there is a blue car in the garage). Go past the blue car and into the kitchen to find the Intel on the table.
-After clearing the small lot (has a bunch of appliances and cars), instead of going right up the stairs between buildings, go left around the three-story house (floors are colored red, yellow, red), and look in the little hut attached to its side to find the Intel on some barrels.
-As you move up the sloped street, there is a blue car on the right side of the street. In the building on that side is the Intel up on the second floor on the table.
When you enter the last open lot and are supposed to go up on the roof, turn to the right, and look in the window behind the goal fence to find the Intel inside a window.
Act 2: Exodus
-In the apartment office, near where the enemies are first repelling in from a chopper. It has red walls and blue curtains inside. The Intel is on the desk.
-In the right-side building of the structure that forms an arch over the road (has toll booths), on a desk directly to the right as you enter.
-After you cross the bridge, go into the second house on the right side of the street. Enter from the front door, then go to your right and up the stairs. The Intel is on a yellow couch above those stairs.
Act 2: The Only Easy Day... Was Yesterday
-In the room before you go back outside (shortly after breaching), the Intel is on one of the metal racks against the wall.
-After executing "Plan B", in the room Soap goes into on the right, the Intel is on a metal rack inside the door.
-After clearing outside, when the team starts going up the stairs, enter the room to the right (you were probably in this building before when you were told to take cover), and look under the stairs on some wooden palettes to find the Intel.
Act 2: The Gulag
-As your team moves towards the arch with the red light, go to the stone stairs before it, and look inside the room on the far wall to find the Intel on some filing cabinets.
-The Intel is on a desk behind the large wall of monitors you encounter on your way through.
-After you get the riot shield and leave the room where you got it, turn left, and go down the hallway. In the first open cell on the right-side wall is the Intel on a desk.
Once you find the person you have been looking for, turn to your left to find the Intel on the desk.
Act 2: Of Their Own Accord
-Inside the elevator that keeps trying to close (in the hallway after you enter the building), the
-Intel is to the right of the body sitting inside.
-In the room with a balcony (out on the balcony is a missile launcher), go to your left as you enter the room, and enter the door straight ahead (near the portrait of Franklin Pierce) to find the Intel on a table down a small hallway.
Act 3: Contingency
-When you reach the three-man patrol standing near the fence, kill them, and go over to where they were. The Intel is about ten feet south on a crate.
-The building labeled "33" along the angled south-west fence contains the Intel on a metal desk inside the northern door.
-Just north of building "33", locate the stairs leading to a helipad (has blue lights on the corners) to find the Intel in the north-west corner.
Act 3: Whiskey Hotel
-When you are told to go left to the building, inside that building after the next door has been opened, the Intel is in the hallway on a couch to the left.
-After you go up the first stairs towards the roof, the Intel is to your right on a desk. This should be about the time when the you see the flares get lit.
Act 3: Loose Ends
-Before entering the house, go behind it, and locate the small boat hanger along the shore. The
-Intel is on a crate outside of it.
-In the locked room on the top floor of the house, the Intel is on a desk in front of the door.
-In the nearest locked room in the basement, go into the arms room to the left. The Intel is straight across from the wall of weapons on a crate.
Act 3: The Enemy of My Enemy
-The Intel is immediately to your right when you begin the mission, in the front of the plane.
After you slide out of the plane hull and move across the street and up the hill, look for the plane pointing towards the road. The Intel is inside, near the cockpit.
Act 3: Just Like Old Times
-As you enter the tunnels, go left as instructed. After the patrol passes, kill the guard standing at the monitor, and go straight across to find the Intel on a crate just to the right of the cave entrance.
-The Intel is to the left on a desk right before you go outside from the tunnels.
-After going across the ridge, the Intel is in an alcove, on a crate.
-The Intel is on the desk with soda cans after you breach the room, near where your ally is working on the computer.
The Intel is at the beginning of the mission, before you board the vehicle.
Chicken out prestige sound:
Once you have ranked past 70, go into the prestige where it tell you what you will gain and lose. However, don't actually prestige. Instead, on the information screen, choose "Continue" to bring you to a screen with "There's no going back...". Press [BACK] and chicken sound effects will be played as if Activison is making fun of you.
Call Of Duty 4: Modern Warfare easter egg:
Play the "Suspension" Spec Ops mission and reach the part where the helicopter shows up, but do not go up all the way. Look off the side to the right to notice the "Wet Work" map from Call Of Duty 4: Modern Warfare.
KFC easter egg:
There is an achievement/trophy named "Colonel Sanderson" that is awarded for killing ten chickens in seven seconds on "Hornet's Nest", a clear reference to Colonel Sanders, the founder of KFC.
Portal easter egg:
In multiplayer mode, there is a "title" called "Companion Crate" that is obtained by calling in a Care Package (and perhaps the emergency drop as well) and letting a teammate get it. This seems to be a easter egg: to the companion cube in Portal.
SOCOM easter egg:
In the "The Only Easy Day Was..... Yesterday" mission, when on the oil rig, you will see a TF-141 person named Jester holding an scoped M14 EBR. This is a clear reference to the original SOCOM where one of the missions was to re-capture an oil rig held by terrorist who planned to blow it up. Jester was the squad's Marksmen in SOCOM, hence TF-141's Jester having a rifle.
Transformers easter egg:
There is a Challenge listed under "Finishing Moves" named "Transformer" where a player must get a Game Winning Killcam with a Pave Low. This challenge is a reference to the helicopter Transformer "Blackout" in the first segment of the Transformers (2007) movie.
X-Men: Last Stand easter egg:
There is an achievement and trophy called "I'm The Juggernaut..." that is obtained by killing a Juggernaut in Special Ops. This is a reference to the movie X-Men: Last Stand where the Juggernaut is trapped in the floor and yells I'm the Juggernaut bitch", which in turn is a reference to a popular internet video featuring the Juggernaut mutant.
Various game easter eggs:
-Go to any Private, Ranked or split-screen match on the Estate map. Pick up a Sniper (or any telescopic sight weapon) class and when the game begins, go inside the estate (the largest house in the center of the area). Look in the rack under the LCD television in the main hall to find a Gamestation 5 console (reference to the PlayStation) with several games named "Italian Plumber Princess Rescue" (a reference to the Marioseries) and "Deer Hunter 17" (a reference: to the ridiculous quantity of Deer Hunter games). Also, go to the basement via the stairs in the kitchen and look at the posters in the wall around the pool table. There should be one with the name "Massey Effect" (a reference to Mass Effect) and in the same poster, there should be the description "Chaos Theory was just the beginning" (a reference to Splinter Cell: Chaos Theory, which story is considered the start of the subsequent Splinter Cell games' stories).
Call Of Duty easter egg:
Go to a private match online, or split-screen and select the multi-player map "Terminal". Enter the match set up options and change the rules to the following: Spectating (Free). Once done, start the game, go to Spectator mode, and fly your camera to the top of the escalators near Burger Town restaurant. Once done, face the Burger Town restaurant and look to the right. You should see about four orange cones, a trash can, two benches, a table, and other objects blocking the other half of the terminal. Fly your camera over those items. Once done, face in the direction of Cherubini's. From there, look to the right to see a store named "Pete's Candy Shop." Go inside Pete's Candy Shop to find two Xbox 360 Call Of Duty games just floating to the left of the chocolate sign.
"Unnecessary Roughness" trophy hint:
In the "No Russians" level when you kill the SWAT with the riot shields, simply pick one up and kill anyone else you find alive.
Juggernaut glitch Special Ops "Armor Piercing":
On the Special Ops level "Armor Piercing", take the Barret .50 and eliminate the first Juggernaut. Then, continue to the scaffolding on the outside deck of the oil rig. Plant claymores along the path the Juggernauts take (which is from the gate and along the inside wall, on the pillar opposite from the scaffold, and up the scaffold ladder). Plant about three of them and wait. When he arrives, wait for him to get to the top of the ladder and shoot him in the head with the Barret. If it does not kill him, plant an extra claymore the next time. If it does, you will see the Juggernaut's body fly off in the direction you shot him, but he will not fly off. Instead, he will get stuck in a random object.
Scaffold glitch on "High Rise":
Spawn to the middle of the map and go to the edges. Look for scaffolding that has one side lower than the other. Go down into it, then look at the building to notice alittle part standing out. If you see it, jump onto it andstart walking. Do not try to get to a lower scaffold or you will die.
Call Of Duty: Modern Warfare easter egg and 8-bit Captain Price on "Bailout":
Begin a Private match and find the indoor arcade with the tilted televisions and staircase. Locate the bathrooms across from the vending machines and look off to the right to see an arcade game labeled "Modern Warfare" (a reference to Call Of Duty: Modern Warfare). If you look to the bottom of the machine you can see an 8-bit version of Captain Price that is styled the same way as Mario (from Super Mario Brothers). The differences include Captain Price's distinguished muttonchops, hat, and clothes.
RPG animation glitches:
When an NPC fires an RPG, the actual round never leaves the launcher even though it looks like something flew out of the grenade. Also, when the NPC reloads his RPG, he will make the motion of inserting a new grenade where it shouldgo, but his hand is not holding one and the grenade (from the previous firing) is still there. This is easier to see in "Wolverines!" where occasionally a friendly Ranger NPC will pick up an RPG and fire it at Russian troops, so you can observe this animation glitch in relative safety.
Indestructible car glitch:
In Campaign mode during the "Exodus" mission, there is an indestructible car found after you pass through the back of the mansion on Brookmere Road and you eliminate the Anti-Aircraft guns. The car is in driveway of the house closest to the bridge that takes you to 4677 Brookmere Road (the house with the giant plane crashed into it). It cannot be destroyed using bullets, RPGs, grenades, grenade launchers, or any other weapon.
Get inside rock on "Fuel":
Go to the large rocks at the back of the map and find the rock with a black spot in the corner on the back side. The rock is close to the large red tank-looking cylinders. Once you find it, go to the corner with a black spot and look down at it. Start to move to the left while moving forward. If you start to jump up and down without pressing X, you are doing it correctly. Once you begin to jump, run forward or to the right to push into the rock. Enemy air support cannot hurt you, though you can get killed by enemies and grenades if you are close enough. It is recommended that you bring a Tactical Insertion because people may discover you are there. Also, use a sniper rifle.
On plane on "Scrapyard":
First, go to the delivery truck next to one of the plane scraps and climb on top of the truck through the front. Sprint and jump to land on the side of the plane, then jump again and you will be on top of plane.
"Noob toob" setup hint:
To have the ultimate Noob Toob class, have the following:
Assault rifle with grenade launcher.
One man army.
Soap McTavish easter egg:
Whenever you get a payback and money flies everywhere, look closely to notice that the head on the money is Soap McTavish.
Leave level boundaries hint:
Note: Make sure you create a class with the following: Perk 1-Marathon, Perk 2 - Lightweight, Death Streak-Painkiller. With a Tactical Insertion, go on a map with radiation and get near it. Then, plant your tactical at the edge and die. Repeat this three times to activate PainKiller. Once you spawn back, start running and your extra health will allow you to break through and be free to explore.
No Scope easter egg:
Find someone on you team with a one man army pack and look towards the bottom. It will say "No Scope".
Back in the Saddle - Help train the militia.
Danger Close - Get hand picked for Shepherd's elite squad.
Cold Shoulder - Infiltrate the snowy mountain side base.
Tag 'em and bag 'em - Find Roajs in the Favelas.
Royale with Cheese - Defend Burger Town.
Soap on a Rope - Storm the gulag.
Desperate Times - Execute the plan to help the Americans.
Whiskey Hotel - Take back Whiskey Hotel.
The Pawn - Assault Makarov's safe house.
Out of the Frying Pan... - Beat the mission in the airplane graveyard.
Pit Boss - Run The Pit in 'S.S.D.D.' and finish with a final time under 30 seconds.
Ghost - Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
Colonel Sanderson - Kill seven chickens in under 10 seconds in 'The Hornet's Nest'.
Gold Star - Earn 1 star in Special Ops.
Hotel Bravo - Earn four stars in Special Ops.
Charlie On Our Six - Earn eight stars in Special Ops.
It Goes to Eleven - Earn at least one star in 11 different Special Op missions.
Operational Asset - Earn all three stars in at least 5 different Special Op missions.
Blackjack - Earn 21 stars in Special Ops.
Honor Roll - Earn at least one star in each Special Op mission.
Downed but Not Out - Kill four enemies in a row while downed in Special Ops.
I'm the Juggernaut... - Kill a Juggernaut in Special Ops.
Ten plus foot-mobiles - Kill 10 enemies with one Predator missile in Single Player or Special Ops.
Unnecessary Roughness - Use a riot shield to beat down an enemy in Single Player or Special Ops.
Knock-knock - Kill four enemies with four shots during a slow-mo breach in Single Player or Special Ops.
Some Like it Hot - Kill six enemies in a row using a thermal weapon in Single Player or Special Ops.
Two Birds with One Stone - Kill two enemies with a single bullet in Single Player or Special Ops.
The Road Less Traveled - Collect 22 enemy intel items.
Leave No Stone Unturned - Collect 45 enemy intel items.
Drive By - Kill 20 enemies in a row while driving a vehicle in Single Player or Special Ops.
The Harder They Fall - Kill two rappelling enemies in a row before they land on their feet in Single Player or Special ops.
Desperado - Kill five enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
Look Ma Two Hands - Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.
No Rest For the Wary - Knife and enemy without him ever knowing you were there in Single Player or Special ops.
Three-some - Kill three enemies with a single shot from a grenade launcher in Single Player or Special Ops.
For the Record - Complete the Single Player campaign on any difficulty.
First Day of School - Complete 'S.S.D.D' and 'Team Player' on Veteran Difficulty.
Black Diamond - Complete 'Cliffhanger' on Veteran Difficulty.
Turistas - Complete 'Takedown' and 'The Hornet's Nest' on Veteran Difficulty.
Red Dawn - Complete 'Wolverines!' and 'Exodus' on Veteran Difficulty.
Prisoner #627 - Complete 'The Only Easy Day...Was Yesterday' and 'The Gulag' on Veteran Difficulty.
Ends Justify the Means - Complete 'Contingency' on Veteran Difficulty.
Homecoming - Compelte 'Of Their Own Accord', 'Second Sun', and 'Whiskey Hotel' on Veteran Difficulty.
Queen Takes Rook - Complete 'Loose Ends' and 'The Enemy of My Enemy' on Veteran Difficulty.
Off the Grid - Complete 'Just Like Old Times' and 'Endgame' on Veteran Difficulty.
Operative - Earn all 3 stars in at least 10 different Special Op missions.
Specialist - Earn 30 stars in Special Ops.
Professional - Earn all 3 stars in at least 15 different Special Op missions.
The Price of War - Complete the Single Player campaign on Hardened or Veteran Difficulty.
Star 69 - Earn 69 stars in Special Ops.
Platinum Trophy - Earn all Bronze, Silver, and Gold trophies.