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

Find 35 treasures

Find 30 treasures

Kill 20 enemies with the Desert - 5

Kill 20 enemies with the Wes - 44

Kill 50 enemies with the Micro - 9mm

Find 15 treasures

Kill 50 enemies with the AK-47

Kill five enemies with a brutal combo

Kill 50 enemies with the PM - 9mm

Kill 10 enemies with headshots

Find one treasure

Kill an enemy by jumping on top of them.