Grand Theft Auto Vice City Definitive Edition Episode 3: Phnom Penh '86

Tommy chases one of Diaz's dealers to his hideout on Prawn Island.
Tommy uses a helicopter to kill a thief dealer, and then retrieves the stolen money from the mansion on Prawn Island.
Tommy steals a speedboat from the boatyard.
Tommy completes a drug deal and takes out several gunmen in a speedboat chase.