Assassin's Creed Revelations Walkthrough Part 13 – The Sentinel, Part 1 and Guild Contracts
The Sentinel, Part 1
Return to the Galata Assassin's Den. Enter and go to the left. Once inside go into the waypoint marker for the next cutscene. Choose the one assassin you can as the Den Leader for Galata. Now talk with him when he appears to receive the mission.
Full synchronization is achieved by using your Assassin Signal at least once.
Once the memory starts, jog to the marked park and take up the point marked on the roof. From here there are three guards that need to be killed. It is easy enough to assassinate them one at a time. Be sure to take advantage of your ranged weaponry to make an easier time of it. This is also a great time to use your assassin signal so you do not need to worry about it for the rest of the mission.
Once you kill them all then make your way to the haystack. Here you will be prompted to use Eagle Sense. Activate it then look to your left. There you will find someone sitting on a bench. Watch to see the culprit's past actions. Head over to the right, toward the stairs to catch sight of him again. Walk a little more to trigger a chase after him.
Chase him as best you can, do not worry about catching him. Just keep at it until there is another scene where you catch up with your apprentice. Here you need to defend him from a number of Guards. They are not too hard to deal with just be quick about it.
Once this is done, the memory is completed.
Guild Contracts
Look around to find a pigeon coop. Here you will be able to send your senior assassin on a mission to start shaking off Templar influence from anywhere in the Mediterranean. Send him off on the one mission that is available.
Once this is completed you will be able to send any other assassin recruits that you have on missions. If you desire to have more Recruits then you will need to go and kill the Captains of Templar Dens. For each that you claim, you will be granted the ability to recruit two more apprentices.