We got the Ring of Garfat last stand map from the Castaway mission which was pretty awesome, so it would be cool if we got something similar with the ship from the Black Sails mission. Some ideas:
(More or less) Same ship, basic events, music, etc, from the original Black Sails mission. (the areas from which you can throw animals into the water should be larger though so there are fewer areas to hide in)
Every minute or so, one of two things could happen for about 30 seconds or so: (events become more deadly as the round continues)
Pirates shoot at the ship the players are on, (damages the ship and knocks back players)
OR
The giant squid attacks the ship's sides (damages the ship and KOs/[grabs?] nearby players)The ship slowly sinks from damage until the end of the round where it's submerged by water and the remaining players drown.