Complete the game on hardest possible settings

Execute a chimney jump of at least 4 wall kicks

Finish the game in Hard Mode

Defeat 50 enemies with the M32 - Hammer

Finish the game in Easy Mode

Defeat ten enemies with grenades by aiming while hanging

Complete one Cooperative Multiplayer game

Defeat 250 enemies with headshots

Defeat 50 enemies with the Micro - 9mm

Find all 100 treasures

Defeat 30 enemies with the Desert - 5

Defeat 75 enemies in a row without dying

Defeat 70 enemies with the M4