All you have to do is go into the system memory from the dashboard, go into the game saves, find BF3 and delete your player profile. When you boot the game back up and log on it reestablishes your profile just as it was before. I had to do this very thing
myself since I had a "corrupt profile" message a month ago.
thanks DTW it worked! now I jus need to wait for them to hopefully fix this Beta BF4 download, MS fault ? OR DICE fault? I liked it better when they used to just email us redeem codes BACK in the good ole days..( for Betas )