Complete all missions
Board a ship without losing any crew members.
Swim a total of 1 nmi.
Kill a guard ringing a bell.
Free your first slave.
Liberate 500 slaves.
Perform 5 air assassinations from a swinging rope.
Kill 5 guards at once with a blunderbuss.
Disarm the Gouverneur and kill him with the branding iron.
Achieve 100% synchronization
Harpoon a killer whale.
Plunder 30 ships.