Unlock the following weapons by performing the corresponding tasks:
WEAPON - HOW TO UNLOCK Brayko's SMGs - Kill Brayko. Brayko's stereo - Spare Brayko. Gold assault rifle - Sneak up on Al Samad Lieutenant without any alarms being sounded. Gold SMG - Assassinate Brajka. Marburg's pistol - Bait Marburg into fighting to the death in the museum. Omen's Shotgun - Kill Omen Deng.