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

Defeat 50 enemies with the Dragon Sniper

Defeat five enemies in a row with headshots

Finish the game in Easy Mode

Find 30 treasures

Defeat 70 enemies with the M4

Complete one Cooperative Multiplayer game

Defeat 100 enemies with headshots

Defeat 30 enemies with Mk-NDI grenades

Defeat 20 enemies with gunfire by aiming while hanging

Defeat three enemies with one explosion

Defeat 20 enemies with hand-to-hand combat