The Onslaught - Finish Act I (single player).
Air Superiority - Shoot down 300 fighters in Campaign mode.
A Private Party - Shoot down all V-1 rockets headed for London (single player).
God Save the King - Fly under every bridge in London (single player).
Divine Thunder - Defend all battleships at Iwo Jima (single player).
Ace of the Skies - Shoot down 6 planes in under a minute.
Moving Target - Drop a bomb on a plane during takeoff.
A Confirmed Kill - Shoot down an enemy fighter with a rocket.
Trigger Happy - Launch more than 100 rockets in a single mission.
Two Heads are Better Than One - Play a co-op mission.
Test Pilot - Finish a single mission in Simulation mode (other than Baptism of fire).
All aboard... - Stop the train before it reaches the railway station (single player).
Flying Hunter - Sink 5 ships in under a minute.
War Hero - Earn all medals and the highest rank in all missions (Act I and II).
Road to Victory - Finish Act II (single player).
Eastern Winds - Finish the Russian campaign (single player).
Blood, Toil, Tears and Sweat - Win all duels with enemy ace (Eastern Winds).
The Sands of Africa - Finish the African campaign (single player).
300% Accuracy - Destroy 3 enemy ground vehicles with one bomb.
V for Victory - Finish all missions on HARD difficulty level (Act I and II).
Famous Ace - Earn all medals and the highest rank in all missions (Eastern Winds).
I'm Not a Rookie - Earn all medals and the highest rank in all missions (The Sands of Africa).