Should a ship that is dredged retain its buccaneers? I noticed it didn’t, and I wasn’t sure if it should or not.
No, effectively the ship sinks, and then is Dredged up again. To keep all the Buccaneers would be a bit too powerful I think 
Makes sense. That is, until you come up with “zombie goblin buccaneers.”
The buccaneers go back to the sea, where you hired them in the first place, because that makes sense
I think they are not Goblins. I think they are some kind of sea creature.
They become Undead Goblins… a Blight on Buccaneers everywhere!