This is one way to DYOM. Mission, Kill Mafia 'is one very successful.
It's about Tenppeny officer and officer Pulasky coming and T-Bone Mendez voucher with Wozzy bring money to their boss Johny Sinadaco. You are Ryder and're voucher with OG LOC, Big Smoke and Sweet. You need to make money and kill the boss and return to the neighborhood.