After open war breaks out with Morello, Don Salieri decides to deliver a statement through force. The target is city councilor Ghillotti, a longtime Morello ally who has repeatedly interfered with the family’s operations. On his fiftieth birthday, he’s hosting a lavish celebration aboard a riverboat, and Salieri wants the hit to be bold and public.

Head upstairs to meet with Salieri, then make your way to the garage, get in a vehicle, and drive to the docks. Once you arrive, walk past the refreshment tables and find Sam—he’s already laid the groundwork for part of the plan. Change into a sailor’s uniform in the nearby restroom, which will allow security to wave you through onto the vessel without suspicion.

Infiltrating the Riverboat

Once aboard, descend to the lower deck and speak with a worker cleaning windows. He’ll mention that the janitor is down in the engine room. Continue descending, turn right, and locate an intoxicated sailor. After your conversation with him, grab the key from the table—you’ll need it to access a restricted area. As you head back up, you’ll encounter someone who starts to recognize you. He’ll initiate a confrontation, so you’ll need to knock him out quietly to avoid raising an alarm.

When you reach the restroom, retrieve the revolver hidden there and take cover at the marked position. Then ascend to the top deck, which provides an excellent vantage point. Ghillotti will be delivering a ceremonial speech from here. Wait for the fireworks display to begin—that’s your signal. At that moment, take the shot to his head.

The Escape

Immediately after the assassination, begin your withdrawal. Security will quickly sound the alarm, forcing you to fight your way out. Don’t try to slip past enemies—clearing them systematically is safer. Make sure to pick up a Thompson submachine gun from one of the guards; the automatic weapon will significantly ease your escape route. As you move through the decks, follow the markers and stay alert for ambushes.

Your objective is to reach the lower deck on the starboard side, where Paulie and Sam are waiting with a speedboat. Once you evacuate from the riverboat, the mission concludes and the story of Mafia: Definitive Edition advances to the next chapter.