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

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Kill 10 Enemies with Grenades While Hanging

Kill 75 Enemies in a Row Without Dying

Kill 100 Enemies with Headshots

Find all Treasures and the Strange Relic

Kill 30 Enemies with the Desert-5

Find 80 treasures

Kill 20 Enemies with the Pistole

Kill 20 Enemies by Shooting from the Hip (without aiming)

Kill 20 Enemies with Gunfire While Hanging

Kill 50 Enemies with the 92FS-9mm