This video will teach you how to download and use Assassin's Creed Brotherhood Keygen (Xbox 360 and PS3)
First you need to download this Tool only from here and for fRee - http://assassinscreedbrotherhoodkeys.blogspot.com
To download Keygen select Regular download and fill a little survey to prove that you're a human. This is done to protect multiple file uploads.
All other instructions you can read in this blog!