Complete Chapter 1 on any difficulty level

Fire 5,000 paintballs

Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.

Defeat 50 enemies with the Dragon Sniper

Defeat five enemies in a row with headshots

Defeat 30 enemies with the Moss - 12

Defeat 30 enemies with Mk-NDI grenades

Defeat 70 enemies with the FAL

Defeat 20 enemies with a single punch, after softening them up with gunfire

Find ten treasures

Defeat 20 enemies with gunfire by aiming while hanging

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

Defeat 20 enemies with headshots