Does Assassin's Creed Freeze on your Xbox 360?  

Funny you should ask about Assassins Creed. Hubby and I have been playing it lately. No it doesn't feeze, thank goodness, but I'm sorry yours does. Maybe you should have your 360 checked out, is it just assasins creed? maybe you should also get another disc altogether.

this happens with a few other games for me that have big environments, oblivion being another one that stands out in my mind, sometimes what you have to do is clear the memory cache on your xbox, this doesnt erase any of your save game data or anything but just data stored in RAM and downloaded game updates. to do this you go to your dashboard, find your hard drive in the system seciton, then there is a button combination that you enter that will clear your cache, this code shouldnt be hard to find just google "clear xbox 360 cache"

Their could be many reasons why Assassins Creed freezes on your console, but majority of the time it comes down to a weak or dead laser. I've been reapiaring xbox 360 consoles for just over 2 years now and unless your console is still under warranty i recommend that you call microsoft and get them to fix this problem