Part 1: Battle of the Chesapeake
After the introductory sequence, exit the Homestead and make your way down to the harbourmaster below. Run over to your ship and interact with the exclamation mark to view the sailing map. Select the exclamation mark here to begin the mission.
This mission features a large scale naval battle. Huzzah! During the first part of this mission, you can earn the optional objective to destroy a ship using only a single broadside (cannon fire) on three different occasions. As you begin sail with the two friendly ships towards the objective marker. There are two battles ahead, so get ready to fight!
First Battle - Destroy the loyalist fleet
Second Battle - Destroy the loyalist re-enforcement
Once all of the enemy ships have been dealt with, follow your allied ship. Once it sinks, sail over to the green circle on the map. When you arrive, ram the massive man-of-war ship to board.
After a short scene, you will be on the deck of the ship. At this point, you are tasked with assassinating the ship’s captain. Before you do that however it should be noted that this is your opportunity to complete the optional objective to kill five enemies with a counter attack. Engage the crew until you have your five counter kills and then tack down and kill the captain.
Following the short cut-scene, you will have 10 seconds to escape the ship. Follow the golden objective marker and jump off the ship to complete the mission.
Part 2: Lee's Last Stand
After the previous mission, you will be back on dry land. Make your way to the exclamation mark in the southernmost part of New York and enter the hatch to the underground. Work your way through the tunnels to the exclamation marker and speak to Lafayette to begin the mission.
Once we are in the military district, we’ll have three optional objectives to attempt. We have to reach the top of the lighthouse within 3 minutes, remain undetected on the way and lose less than 50% of your health during the course of the mission.
At the start you will be in a well. Grab the enemy in front. Climb the building to the right. Continue along the rooftop here to the far end and jump to the building opposite. Continue over the next two rooftops, being sure to stay out of the guards lines of sight. When you reach the gap that is too large to jump, hop over to the building to the right and use the beam here to jump to the V-shaped tree and from there to the next building.
From this roof we will now be able to see the lighthouse ahead. Hop to the building in front and to the left and from here look down at the courtyard below. Jump down into the hay cart below. If you face the target building, there will be a guard patrolling the elevated circular platform to the left of the light house. There is a second guard to the left who will patrol around the corner of the building behind us and back again. There will be an additional guard behind us and to the right who will patrol up to the hay cart and then away again.
When you regain control, you will be in a small tunnel looking out at a courtyard. Exit for a scene. You will now have to fight the bad guy here. He is quite strong and you will be unable to kill him in the normal way.
To do it, you will need to counter his attacks when you are near an environmental object (tables, barrels etc.) to damage him with it. Once he has taken enough damage, a scene will play. Press the action button when indicated to complete the mission and the sequence.
Complete Sequence 11.