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

Finish the game in Easy Mode

Kill 50 enemies with the M4

Kill 30 enemies with the MP40

Kill 50 enemies with the 92FS - 9mm

Find 30 treasures

Kill 20 enemies with the Desert - 5

Kill 50 enemies with the Micro - 9mm

Find 15 treasures

Kill 30 enemies with headshots

Kill 50 enemies with the PM - 9mm

Find five treasures