Disarm Mexican by shooting the gun from his hand.

Finish Black Peter case.

Kill 100 Enemies with Headshots

Kill 30 Enemies with the KAL-7

Defeat 50 Enemies with Hand-to-Hand Combat

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

Kill 75 Enemies in a Row Without Dying

Find 1 Treasure

Finish the Game on Normal Without Changing the Difficulty

Kill 50 Enemies with the Dragon Sniper

Kill 50 Enemies by Melee-Attacking from Behind

Kill 30 Enemies with Mk-NDI Grenades