Optional Objectives:
- Kill three guards from Stalking Zones
- Air assassinate Chamberlaine
Head to the exclamation point in Nassau and talk to Vane to start this memory. The game happily sets you on the way to completing the first task by having a guard standing right next to a stalking zone, so take him out. Make sure to tag the men with Eagle Vision and as the men approach the restricted zone head right, keeping just outside the restricted area. Eventually the men will turn right, heading your way, so take cover and let them pass.
As the men head south you will want to head to the right side of the restricted zone and find some bushes, when a guard nearby that can be lured with a whistle for a kill. Kill the other guard and then follow the men along the cliffside to a Leap of Faith by a rock and join them on their level. One of the guards from the group will break off and present his back to you, so get that final stalking zone kill and then continue to carefully follow the men on the right side of the tents.
When the objective changes to kill the Commodore, swim out to the ship and use the debris to reach the rigging. Climb the foremast and follow the rigging to the stern of the ship where you should easily be able to air assassinate the Commodore.
