Ubisoft has released the third video developer diary for Assassin’s Creed Brotherhood entitled ‘The Perfect Nemesis’. The video shows us a new crossbow that can be upgraded as well as a parachute… pretty cool. The diary is mostly about Ezio’s nemesis, Cesare Borgia. The Assassin’s Creed Brotherhood Multiplayer Beta is now available if you apply. The game comes out on November 16 in the US and November 19 in the UK for Xbox 360 and Playstation 3.