Defeat the Hypersonic Brainwave Scrambler

Retrieve Chief Zahn's Zoni Vessel.

Defeat 30 enemies with the RPG - 7

Defeat 250 enemies with headshots

Defeat 30 enemies with the Desert - 5

Defeat 70 enemies with the FAL

Defeat 100 enemies with headshots

Defeat 50 enemies with the Dragon Sniper

Defeat 70 enemies with the M4

Find ten treasures

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

Defeat 20 enemies with headshots

Defeat 20 enemies with hand-to-hand combat