Kill 10 enemies by aiming while hanging from a ledge

Kill 20 enemies with the Desert - 5

Kill 20 enemies with the Wes - 44

Kill 50 enemies with the Micro - 9mm

Find 30 treasures

Finish the game in Easy Mode

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

Kill 100 enemies with headshots

Find 25 treasures

Find 15 treasures

Find 10 treasures

Kill 30 enemies with headshots