Find 45 treasures

Kill 100 enemies with headshots

Find 30 treasures

Kill 20 enemies by shooting from the hip (without aiming with the L1 button)

Kill three enemies with one explosion

Kill 10 enemies by aiming while hanging from a ledge

Kill five enemies with a brutal combo

Kill 50 enemies with the AK-47

Find the Strange Relic

Kill 50 enemies with the PM - 9mm

Kill five enemies in a row with headshots

Kill 10 enemies with headshots