Marooned

When the mission begins take the time to explore the beachside. Since the area was not on the map previously there will be lots of stuff to find! Synchronize the viewpoints and loot the treasure chests for plunder (don't forget about the Treasure chest on the beach). After that is done enter the jungle and chase after Vane. There are several black jaguars in the jungle that you can dodge and kill (there are some Crocs here but you need Sleep Darts to kill them) Use Eagle Vision to spot the felines and then get in close for the the kill. If the jaguars pounce on you fight them off and then chase and kill them. Re-visit the same area and the black jaguar should respawn if you need more kills. The first area with Vane has him standing atop of the Mayan structure right by a Viewpoint. Make your way up to the Viewpoint and Synchronize the area. From there use an Eagle Dive to the water below and continue following after Vane to the next area. The Second area has Vane standing above a large tree branch and shooting at you while tossing bombs. Mov form cover to cover then get on the left side. Avoid Vane's gunshots because they cause a huge amount of damage! Climb up and notice how the bridge you are on is about to explode! Keep chasing after him to the last area. Move from wall to wall and make your way to the back of the temple on the right side. Climb the wall from the back of the top (where the third Viewpoint is located). When you reach the top of the temple synchronize the Viewpoint and then go for the Air Assassination to complete the mission.