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