8-Ball, knowing about the meeting after a phone call from Salvatore Leone, tells Claude that he needs $100,000 for the explosives and tells Claude to return when he has the money. After obtaining the necessary money, Claude returns to 8-Ball's and the two head to Portland Harbor, with 8-Ball giving Claude a Remington 700, since his hands are still in a condition bad enough to handle a weapon. After arriving at Portland Harbor, Claude gets a good vantage point (likely the staircase on the warehouse) and begins to kill the Colombian Cartel gang members guarding the Les Cargo container ship, with 8-Ball planting the explosives. He detonates the explosives, getting off the ship's bridge just before it sinks.
The reward for completing this mission is $150,000 and the mission Last Requests is unlocked.
If the player is on the ship when it explodes then the player will not die, instead, they will reappear back on land, but the Cartel Cruisers are gone.
The player will still get the cutscene that shows 8-Ball telling Claude that he needs $100,000 even if they already have the money.
Despite the fact that Claude is given a sniper rifle, the player is at liberty to use any weapons at their disposal and can even get on board the ship to fight. A video of this can be seen here.
If the player drives a car up the ramp before 8-Ball sinks the ship, the car can be seen hovering in the air after the ship is destroyed. This can be seen here.
A ship very similar to the one destroyed in this mission can be seen in GTA IV, as a deteriorated wreck located off the west coast of Acter Industrial Park.
Despite not being able to use a weapon, 8-Ball has no problem setting up an explosive with his injured hands, showing he is either very experienced in bomb making/planting,it may have been and overlooked detail by the developers, or simply it was already made.
If the player fails the mission, they will still lose money if they replay it.
This is the only time the Cartel Cruiser appears in Portland. (Excluding Firefighter and Vigilante Missions.)