Kill 20 enemies with Mk-NDI grenades

Find 50 treasures

Kill 20 enemies with the Desert - 5

Find 35 treasures

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

Kill 50 enemies with the Micro - 9mm

Find 30 treasures

Kill 100 enemies with headshots

Kill 50 enemies with the AK-47

Find 20 treasures

Find 15 treasures

Kill 10 enemies by aiming while hanging from a ledge