Eel O'Brian
Member
Infinity Ward is aware that some players have experienced challenges with lag issues and we are currently working with Microsoft to create an update that will resolve it. Were tuning and testing possible solutions, so its too early to provide specifics. We are aware of the issues at hand and we will keep you posted as soon as we are able to confirm details surrounding an update. Thank You!
Sincerely,
Infinity Ward
http://forums.xbox.com/1663493/ShowPost.aspx
Not sure if this is real, but I thought I'd post it just in case.