Kill five enemies in a row with a single punch, after softening them up with gunfire

Find all 60 treasures

Kill three enemies with one explosion five times

Kill 50 enemies with the AK-47

Kill 50 enemies with the M4

Find 55 treasures

Kill 50 enemies with the 92FS - 9mm

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

Kill 20 enemies with the Desert - 5

Find 45 treasures

Find 40 treasures

Find 30 treasures