The Hidden Blade Assassin's Creed in Depth

There are several easy ways to complete this mission, most of which I don't bother to show in this video:
1) Smoke bomb.
2) Poison delays the death of the Brute, which also delays the start timer.
3) Special attack with multiple throwing knives.
4) Arrow storm.

8 Brutes. 2 Blades. 6 Seconds.
Kill off the Brutes in pairs. Start by blending with passing group of people so that you can kill the first pair without detection. If you are lucky, the last 2 Brutes will be close enough to each other for a double hidden blade finish.

0:40 There is a bug in the mission - It often does not give 100% sync even when you kill all of the Brutes within 15 seconds. It might be related to whether you stay Anonymous.

Silent Brutality
The goal is to kill all of the Brutes without being detected. Blend with a passing group and kill a Brute. Kill off the other Brutes as they inspect the dead body. I'm sure this could have been done faster.

The "Elm Street" Effect
In AC2, you could sheath an "improper" weapon (such as a broom or shovel) if your sheath was previously empty. This glitch was fixed in ACB so that you could not sheath an improper weapon even when the sheath is empty.

You can circumvent this restriction by finishing a replayed memory while holding the improper weapon without any other weapon in your sheath. At the loading screen, the game forces the improper weapon into your sheath, and you will be able to use the weapon again either inside the replay feature or out of it.

Sheathing an improper weapon allows you to climb, sprint, and free run without dropping it. You will be able to use the weapon again when you take it out of the sheath, but you won't be able to re-store the weapon properly (by sprinting or switching weapons, for example). You can drop the improper weapon by climbing.

"Elm Street" refers to the movie, "A Nightmare on Elm Street," where the protagonists are able to bring items from their dreams into reality when they wake.

2:02 There is a bug with the Spring Cleaning trophy, which is supposed to be granted when you kill someone with a broom. Apparently, you just to need to be holding a broom when someone dies.