Complete a mission using only a pistol and no melee attacks.
Finish Berlin.
Complete the game on the hardest difficulty.
Complete the game.
Finish Rocket.
Finish Hurtgen.
Complete a mission without dying or loading a checkpoint.
Complete the Russian missions.
Complete the British missions.
Complete the American missions.
Get kills using a pistol, rifle, submachine gun, and grenade in a mission without dying.
Complete Training.
