Complete one Competitive Multiplayer game

Defeat 20 enemies while swimming

20 times in a row, pick up ammo while rolling

Defeat 50 enemies in a row without auto-reloading

Finish the game in Normal Mode

Defeat 30 enemies with the PAK-80

Defeat 50 enemies with stealth attacks

Defeat ten enemies with propane or acetylene tank explosions

Kill 10 enemies with thrown-back grenades

Defeat ten enemies in a row, alternating hand-to-hand combat and gunplay

Finish the game in Easy Mode

Defeat ten enemies using hand-to-hand combat on the back of the convoy trucks