Here's a save that has a total of 94% sync for the entire game. It has 100% MAIN MISSION SYNC and yes, the Altair costume IS UNLOCKED!!!! the only downside is that there is only a little bit of money, but that shouldn't be much a problem. Enjoy!!! http://www.mediafire.com/?sbzn1xz0y64z267
just download the save the use Horizon or Modio to rehash and resign it to gamertag profile then just put it on xbox hdd.
Thanks for the save, however I completed the last naval privateer contract using this save and didn't get the entrepreneur, not pirate! achievement any help/suggestions on how to get this using this save?