Kill 30 Enemies with the M9

Kill 100 Enemies with Headshots

Play in the Swimming Pool on the Cruise Ship

Kill 10 Enemies with Grenades While Hanging

Kill 20 Enemies with Gunfire While Hanging

Kill 30 Enemies with the KAL-7

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

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 5 Riot Shield Enemies by Running Over Their Shield

Find 40 Treasures

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

Find 20 Treasures