Kill 30 Enemies with the Mk-NDI

Kill 20 Enemies with Gunfire While Hanging

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

Defeat 20 Enemies with Hand-to-Hand Combat

Kill 5 Enemies in a Row with Headshots

Finish the Game on Easy Without Changing the Difficulty

Kill 50 Enemies by Melee-Attacking from Behind

Kill 20 Enemies with the Pistole

Kill 100 Enemies with Headshots

Kill 30 Enemies with Mk-NDI Grenades

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 20 Enemies with Headshots