This is a Gravina Crime Family mission.
"The head of the Mob is Big Sal Gravina - an old friend who sold you out then tried to have you killed in jail. He's first on the hitlist. Big Sal's gang smuggles hundreds of stolen vehicles into the US every month and sells them at a premium. Let Sal know you are back in town by trashing a shipment of cars down at the docks."
This is the first story mission against Sal's outfit. It's pretty simple, you just need to destroy four ISW 508 convertibles down at the Port. Start by activating the mission icon, then hop in a vehicle and follow your GPS to the docks. Go through the entrance between the warehouses where you will find the cars parked off to the left, marked with large green arrows above them.
The first pair will have two gangsters watching them. You can take them out first or let the explosion do that for you. To destroy the cars you can either toss a grenade or simply put a bullet in the gas tank, which on most vehicles is above and slightly to the rear of the back left tire. Once those two are destroyed head around the building to the last two and do the same. After you blow them up three gangsters will run at you from the south. Take them out, then head to the safe zone and activate the icon to end the mission.
- Although you start off equipped with a shotgun and a pistol, you may wish to make a trip to Harry's Gun Shop and buy some better hardware before you start.
- To get an initial flow of funds you can usually find Smith Thunderbolts as well as other rare vehicles in abundance around the local area of Oyster Bay and Southport that can be quickly sold to Derek for export.