Complete one Cooperative Multiplayer game

Defeat ten enemies in a row with a single punch, after softening them up with gunfire

Defeat 200 enemies with the GAU - 19

Defeat 70 enemies with the SAS - 12

Defeat 50 enemies with the M32 - Hammer

Defeat 75 enemies in a row without dying

Defeat 30 enemies with the RPG - 7

Defeat ten enemies with grenades by aiming while hanging

Finish the game in Normal Mode

Defeat 70 enemies with the M4

Defeat 50 enemies with stealth attacks

Defeat 30 enemies with the Desert - 5