Purchase an Upgrade - Either Campaign

Earn a Bronze Medal - Either Campaign

Defeat 50 enemies with the Dragon Sniper

Defeat five enemies in a row with headshots

Defeat 50 enemies with stealth attacks

Defeat 50 enemies with the Micro - 9mm

Defeat 30 enemies with the Desert - 5

Defeat 30 enemies with Mk-NDI grenades

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

Defeat 50 enemies with the 92FS - 9mm

Find ten treasures

Defeat 50 enemies with hand-to-hand combat