Finish the Game on Normal Without Changing the Difficulty

Find all Treasures and the Strange Relic

Kill 30 Enemies with the Tau Sniper

Kill 30 Enemies with the M9

Kill 50 Enemies by Melee-Attacking from Behind

Kill 100 Enemies with Headshots

Defeat 20 Enemies by Blind-Firing While in Cover (without aiming)

Compare Statistics with Friends

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

Hit 3 Enemies with Fish in the Market

Kill 30 Enemies with the G-MAL

Kill 30 Enemies with the Mag 5

Defeat 20 Enemies with Hand-to-Hand Combat