Kill 30 Enemies with the Arm Micro

Successfully Counter all of a Brute's Damage-Giving Attacks

Defeat 20 Enemies with Hand-to-Hand Combat

Finish the Game on Easy Without Changing the Difficulty

Finish the Game on Normal Without Changing the Difficulty

Kill 50 Enemies by Melee-Attacking from Behind

Kill 50 Enemies with the M4

Kill 30 Enemies with the Wes-44

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 20 Enemies with Gunfire While Hanging

Kill 30 Enemies with Mk-NDI Grenades

Kill 20 Enemies with Headshots