Optional Missions:
- Rescue 5 survivors
- Kill 5 guards stunned by smoke bombs
Go to Salt Lagoon to begin the mission. Follow the marker, the area will then turn to a large green search area on the map. Follow the icon to find the Queen Anne's Revenge. You'll find some pieces of wreckage along the way. Rescue at least 5 survivors stranded on the sea to count towards your first optional mission. Head to Mariguana Island to find Blackbeard's ship. There are also a few Royal Navy frigates in the area which you can loot or capture to add to your online fleet.
Head to the shore and help Blackbeard defend himself against some Royal Navy men. Completing the second optional objective should be easy at this point; use smoke bombs to stun your enemies and take them out while they're stunned by the smoke cloud. Talk to Blackbeard again after defeating all enemies then head out to sea again to go to the marked area.
You'll be controlling Queen Anne's Revenge. It has more guns and more powerful than the Jackdaw but it is slower so you'll have to compensate for that when controlling it. Face the target Man o' War head-on and incapacitate it so you can board it. Unlike other boardings, you don't need to kill any of the ship's crew members; just locate the captain and kill him to complete the mission.