Defeat 5 Guardians With a Sniper Rifle

Kill an Enemy While Playing as an Alternate Character Costume Other Than Drake

Find 100 Treasures

Defeat 250 Enemies with Headshots

Kill 10 Enemies in a Row with a Single Punch After Weakening Them with Gunfire

Kill 50 Enemies with the M32-Hammer

Kill 30 Enemies with the Wes-44

Finish the Game on Hard Without Changing the Difficulty

Finish the Game on Crushing Without Changing the Difficulty

Completed Chapter 3 "Weapons of Mass Destruction."

Harvested 500 phantoma.

Kill 30 Enemies with the Desert-5

Kill 50 Enemies by Melee-Attacking from Behind