Unlock the following bonuses by completing all Hitman activities for the corresponding gangs:

BONUS - GANG
Gold GDHC .50 at Crib - Los Carnales Hitman activities.
Mr. Wong homie - Westside Rollerz Hitman activities.
Platinum AS12 Riot at Crib - Westside Rollerz Hitman activities.
Platinum T3K-Urban at Crib - Vice King Hitman activities.
50% discount at Friendly Fire - Complete all Hitman activities.
Platinum RPG Launcher at Crib - Complete all Hitman activities.