Kill 100 Enemies with Headshots

Find 20 Treasures

Throw Back a Grenade and Defeat 2 Enemies at Once

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

Defeat 20 Enemies with Hand-to-Hand Combat

Finish the Game on Normal Without Changing the Difficulty

Kill 50 Enemies with the 92FS-9mm

Kill 50 Enemies with the M4

Kill 30 Enemies with Mk-NDI Grenades

Kill 50 Enemies with the FAL

Defeat 20 Enemies with Hand-to-Hand Combat

Finish the Game on Normal Without Changing the Difficulty

Kill 75 Enemies in a Row Without Dying