Please fill out the following form, as per @Ghost Recon:
This tool will help Ubisoft eliminate bugs and glitches as swiftly as possible.
I had sound problems right off the bat. It went away after I restarted my Xbox though. Thanks for the link Mad Cow.
Unfortunately, like most betas, some problems persist on the release version and some new problems come up.
Thought they would have done all the fixes during the beta.