Unlock the following missions by performing the corresponding tasks:
MISSION - HOW TO UNLOCK "Deadly Xin" mission - Unlock the Diamond Pillbox, Golden Binoculars, Jeweled Bong, Jeweled Key To The City, Platinum Syringe, Silver Titanium Briefcase, and Wooden Spoon trophies. Find the two hidden Lions of Fo. Register online at the Rockstar Social Club, then sync your DS with your account through WiFi. You will receive an email from Xin.
"Xin's Of The Father" mission - Beat the "Deadly Xin" mission with no wanted level.