Make your first kill as a rookie (in Cause and Effect mission)

Finish the game in Easy Mode

Finish the game in Hard Mode

Defeat 50 enemies with stealth attacks

Find 90 treasures

Find 80 treasures

Defeat 30 enemies with the Desert - 5

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

Defeat 100 enemies with headshots

Find 50 treasures

Defeat 20 enemies with gunfire by aiming while hanging

Defeat 30 enemies with the Moss - 12

Defeat 30 enemies with the Wes - 44