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.