The Hidden Blade Assassin's Creed in Depth

For this memory, you are required to kill a Den captain to reclaim the Den for the assassins. I messed around in it, and this is the end result. Sadly, I wasn't able to record an eagle strike, though I know how to jump and all that (tip: use eagle sense to direct Ezio's gaze very precisely, which makes difficult jumps much easier). Anyway, on to the video.

The Easy Way
I discovered that you can spot the captain early if you activate Eagle sense early (not necessarily before interacting with Yusuf, though this is the fastest). This speeds up the mission a bit. Other than that, it's just a good route. For some reason, I get detected when air assassinating by a guard on another roof. You can take him out before talking to Yusuf.

Superfast Blitz
Since Ezio's within killing range of the target as soon as the option to kill becomes available (you have to use Eagle Sense first), I'd say this qualifies. Note that to talk with Yusuf, you have to lock on, so it's hard to target the captain any faster.
To move Yusuf while he's standing on the roof, you'll have to get a guard to follow you. I use the archer on the adjacent roof for convenience. Be careful not to push Yusuf straight towards the tower, since he'll land on a small platform on the front of the building. Getting him off there takes many guards, and he also employs his hookblade to climb back up, should he fall down (forgot to edit that in). I push Yusuf more towards the corner of the building.

Death by Merchandise Lift
I killed off the other guards, if you were wondering. Since the captain follows you, it's easy to lure him towards the merchandise lift for a funny kill.

Death by Jannisary
After a screwup (I got detected), I ran away to a point where you would normally desynchronized. Thing was, I didn't get desynchronized! Turns out the distance measured is the distance to the captain. I use this to lead the captain to a Jannisary patrol, which attack him on sight. After the Jannisaries kill the captain, they flee, as if they were Byzantines.
Afterwards, you won't get desynchronized if you're outside the distance restriction range of the tower (I'm outside it in the video). You'll be free to go wherever you wish so long as you don't enter the area near the tower.

Flycense to Kill
I'm terribly, terribly sorry for the über lame pun. I was thinking about what to call this "Fly to kill" thing and then it just dropped on me. I couldn't stop laughing (it was late ), so I included it.

Blitz
To interact with Yusuf, you have to press . This starts the cutscene and sometimes makes Ezio perform the action coupled to it as well. I've picked up the body laying next to Yusuf this way several times. As many of you will know, if you are in a non-standing position during a scene, many actions are available that wouldn't be available otherwise. A simple back eject ensures a fast blitz.
I also lock onto Yusuf to get a greater interaction range.

Spear from the Roof
The Almogavar guarding the 'front door' is spawned before you talk to Yusuf. I kill him for a dead body distraction for the spearman and his companion. You can do it without the DBD, but you have to defeat a few more guards. Other than that, the route is straightforward. It's funny that the guards around the captain go to investigate the body and not running away.

Ghost Run
Not in the traditional sense, but no status indicators of any kind. Since the kill is mandatory, I use the most stealthy means I had: poison darts. I haven't been able to pull off a proper mysterious death, because of the guard directly next to the captain. Sorry for not speeding up this part, but I'm not going to convert a 1 hour long clip (which takes like 2 hours) for a 1 minute speed gain. I also thought this a nice way to end the level and the vid.