Quick EXO Exit hint:
When piloting the L.E.O. EXO suit, instead of jumping in/out in the middle of the field, try standing against a wall. When you exit or enter the EXO suit, you won't have to deal with the in/out animations.
Purchased the following cheats for the corresponding prices:
Singularity Cannon - 5,000
Pulse Grenade - 5,000
XNG-5000 - 5,000
Nano Rifle - 5,000
Banshees - 5,000
Arc Welder - 5,000
Charge Launcher - 5,000
Plasma Beam/Mr. Toots - 5,000
Plasma Cannon - 5,000
Assault Rifle - 5,000
Rail Driver - 5,000
Rocket Launcher - 5,000
Shotgun - 5,000
Pistols - 5,000
Napalm Laser - 10,000
Convergence Laser - 8,000
L.E.O. Rocket launcher - 8,000
L.E.O. Machine Gun - 6,000
Lava Barge Turret - 6,000
Sketch Mode - 10,000
Night Vision Mode - 8,000
Instant Nano Forge - 10,000
Super Melee - 8,000
Earthbound easter egg:
Near the beginning of the game, Kara gives you a "Franklin Amulet", which is supposed to protect against lightning.
Grabbing objects above you:
In order to grab things above you, such as ammo crates, salvage points or anything else, simply position yourself under where the object is, Then, jump and melee in the air to grab the desired object. This can also be used to kill enemies above you without having to face the enemy face-to-face, or in this case, face-to-weird face like area.
Complete the game to unlock New Game+ mode, Mr. Toots, and the "Cheats" menu.
Unto The Breach - Gain entry into the Terraformer.
Secrets Long Buried - Remove the Seal.
We're Not Alone - Make it back to civilization.
Vanguard - Escort the convoy.
Things Fall Apart - Destroy the Water Filtration Plant.
Survival of the Fittest - Make it to the surface.
I'm All You've Got - Defend the Red Faction.
Weather The Storm - Destroy the Jamming Devices.
Family Business - Defeat the Mantis.
Must Go Faster - Travel to the Marauder homelands.
Old Friends, Older Enemies - Safely escort Winters through the depths.
Plan B - Find out how to reach the lair.
Knock, Knock - Open up the secret entrance.
Losses - Make it through to the lair.
One Big, Ugly Motha... - Defeat the source of it all.
Crusader - Kill 175 enemies while in the L.E.O. exoskeleton.
Ooooh Yeah! - Kill 5 enemies with one L.E.O. shoulder bash.
Martian Drive-By - Kill 100 enemies while in the Marauder Scout Walker.
Hit 'N Run - Kill an enemy by ramming them with the Inferno GX.
Exterminator - Destroy 100 Pods while piloting the Mantis.
Salvager - Find 200 piles of salvage.
Money Well Spent - Buy out any one Upgrade ring.
Cheater! - Buy a Cheat.
It's All In The Wrist - Send an enemy at least 30 meters with Impact.
Haymaker - Kill 5 enemies in one shot with Impact.
Zero G War - Kill 50 Shockwaved enemies before they hit the ground.
Hold Still - Kill 6 enemies in one use of Shockwave.
Lock And Load - Keep Berserk active for at least 21 seconds in one use.
Back At Ya! - Make an enemy kill themselves while shooting at your Shell.
Liftoff - Send an enemy at least 50 meters with the Magnet Gun.
Martian Matchmaker - Fire an enemy into another enemy with the Magnet Gun.
What Is Best In Life? - Perform melee finishers on 25 Creepers (single player only).
Boom Goes The Dynamite - Kill 2 other enemies with a single exploding Berserker.
Crack Shot - Kill a Wraith before it re-sheaths.
Soldier - Finish waves 1 through 10 on any map in Infestation.
Bug Hunt - Finish at least one wave on each map in Infestation.
Field Surgeon - Perform Revival 25 times in Infestation.
That Coulda Gone Better - Finish the Single Player game on Hard Difficulty.
Breathe Easy - Put an end to the threat, once and for all.
Chronicler - Listen to 40 Audio Logs.
Nanergy! - Gather 25,000 total salvage.
Martian Can Opener - Buy every Upgrade.
Catch! - Use the Magnet Gun to fling debris BACK at a Tentacle.
In. The. Face! - Kill one of each enemy type with the Maul.
Commando - Finish waves 1 through 20 on any map in Infestation.
All For One, One For All - Finish a 4 player Infestation game beyond wave 9 without anyone bleeding out.
I Need A Nap - Finish the Single Player game on Insane Difficulty.
Honorary Mason - Finish waves 1 through 30 on any map in Infestation.
Red Faction: Armageddon Master - Earn all Bronze, Silver, and Gold trophies.
"Path To War" trophies:
Air Superiority - Clear a safe path to the Terraformer for Hale. (Downloadable Content).
Bird of Prey - Allow no Red Faction to survive your attacks on their mountain base. (Downloadable Content).
Swath of Destruction - Reunite Sgt. Winters with the Red Faction. (Downloadable Content).
Armored Cavalry - Rescue the pinned-down Red Faction soldiers. (Downloadable Content).
Nuke It from Orbit - Wipe out the Cultist military camp. (Downloadable Content).
Wrecking Ball - Get 20 kills with the Shard Cannon. (Downloadable Content).
A Taste of their Own - Eliminate 10 enemies using one of their own turrets. (Downloadable Content).
Stick Around - Get 20 kills with the Sharpshooter. (Downloadable Content).
Full of Malice - Kill Mallus. (Downloadable Content).
Triple Threat - End the three-way battle between yourself, the aliens, and the Cultists. (Downloadable Content).