Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.

Complete the Single Player campaign on any difficulty.

Complete the mission in the airplane graveyard.

Take back Whiskey Hotel.

Storm the gulag.

Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.

Defeat 50 enemies with stealth attacks

Finish the game in Normal Mode

Defeat three enemies with one explosion

Defeat 20 enemies with a single punch, after softening them up with gunfire

Defeat 50 enemies with the 92FS - 9mm

Defeat ten enemies in a row with hand-to-hand combat

Defeat 50 enemies with hand-to-hand combat