Reach level 5 in any faction

Defeat 20 Enemies with Hand-to-Hand Combat

Score with an Outside of the Foot Shot

Kill 5 Enemies in a Row with Headshots

Complete a stealth kill.

Purchase a Grove Street tattoo.

Finish the Game on Normal Without Changing the Difficulty

Kill 50 Enemies by Melee-Attacking from Behind

Kill 20 Enemies with Gunfire While Hanging

Kill 20 Enemies by Shooting from the Hip (without aiming)

Kill 100 Enemies with Headshots

Kill 30 Enemies with Mk-NDI Grenades