The Hidden Blade Assassin's Creed in Depth

http://www.youtube.com/watch?v=TtVgzoOqKr0

Basically some things in sequence five that shouldn't be possible.

In the Huddle While tailing Tarik
In the beginning of the sequence you follow Tarik around. There are three scenes during that.
1. Tarik meets up with a Jannisary. I've found that Ezio is teleported to a certain spot if he isn't blended with a crowd, so I throw a gold bomb to remain blended. This isn't much of a scene (as you can tell from the Jannisary being gently pushed aside. Also if Ezio is aiming with a ranged/special attack before the scene he maintains that and can kill either Tarik or the Jannisary during the scene but will desynchronize right after).
2. Tarik talks with two Jannisaries. The game developers didn't count on you getting ahead of Tarik during this and blending with a group of Romanies to remain undetected.
3. Last scene. Unfortunately Ezio becomes invisible for this, but something funny happened that was worth putting in the video. A civilian jumped onto the railing Ezio was crouching on and could be seen for part of the scene.

Non-story Infiltration of the Arsenal
You aren't supposed to be able to get inside the Arsenal during this memory, which is why you incite civilians to break down the gate. Here are two ways of getting in there beforehand.
1. Climb the nearby high viewpoint and use a parachute.
2. Go right along the wall until you reach a place where you can climb up. You can also get past the memory walls in the Arsenal to reach the building where the weapons are stored later on.

Later in the Game
The next memory where you infiltrate the Arsenal. I haven't been able to find anything useful, but I decided to show what I did find. You can lock onto one of the characters in the building without starting the scene (the Renegade by the looks of it), but he is invincible to any ranged attacks and bombs, as well as the other characters in there. And by climbing in a certain place I can technically get inside the building without starting the scene, but there is no way to get to the characters without starting it as far as I know.