Unlock: Complete Father and Son; and Pulling Favors
Playable Characters: Michael, Franklin
100% Gold Requirements:
Not a Scratch – Complete mission with minor damage taken by the Bison.
Mission Time – Complete mission within 5:30.
Unmarked – Complete mission with minor damage to health and armor.
Drive-By Killer – Kill 3 enemies while riding a vehicle.
Ride the truck and chase the suitor down. At the hills, tie the cable around the house and pull it down. Shoot the enemies from the windows and aim at the windshield from the passenger's side.
Head back home after the shootout.