Sleep on a bed or bedroll

Finish the Game on Normal Without Changing the Difficulty

Find 40 Treasures

Defeat 10 Enemies with Thrown-Back Grenades

Kill 30 Enemies with the Mk-NDI

Kill 30 Enemies with the KAL-7

Kill 5 Enemies in a Row with Headshots

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

Beat the Last Chapter Without Dying on Normal Difficulty or Harder

Kill 30 Enemies with Mk-NDI Grenades

Kill 50 Enemies by Melee-Attacking from Behind