Defeat 20 Enemies with Hand-to-Hand Combat

Kill 20 Enemies with Headshots

Kill 5 Enemies in a Row with Headshots

Compare Statistics with Friends

Activate a Tweak

Finish the Game on Normal Without Changing the Difficulty

Find 100 Treasures

Kill 50 Enemies by Melee-Attacking from Behind

Find 80 treasures

Kill 50 Enemies with the M4

Kill 20 Enemies with the Pistole

Kill 30 Enemies with Mk-NDI Grenades