Download file here: http://linkliquid.com/nicosiae403/August
This is a new Crack for ACB MP. And yes I've tested it and it actually works. I've found it on a russian hacker forum but the game is English. It is an improved version of the old one its verision: 2.4908.39
Ok, lets start. What do you need to do?
1. Download the rar file
2. Unrar it.
3. Copy and paste in the folder where you've installed Assassin's Creed Brotherhood.
4. Run the update.
5. Launch the keygen
6. Generate a key
7. Use it when it ask for a key.
8. Use Hamachi or Tunngle to set up a server.
9. Let your friends join your network
10. PLAY THE GAME
Download the installation guide for further detailts (like setting up a server)