Kill 40 enemies while in a vehicle.
Kill 200 enemies.
Achieve the 12X score multiplier.
Achieve the 24X score multiplier.
Free 25 POWs.
Get in the tank with two other players.
Attain a 24X score multiplier on every level.
Complete the game with at least one other player.
Complete the game on Black Ops difficulty.
Complete the game on Suicide Mission difficulty.
Rescue all of the POWs in the game.
Find all of the Secret Areas in the game.
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