I'm 11th prestige because my friend got me into a lobby and the host automatically made me 11th. I wanted 9th. Now I have insane stats and whenever I unlock an attachment, the game says "corrupt data error...etc" and my classes reset. I've tried using the prestige lobbies you can host yourself with a usb but whenever i go onto multiplayer XBL, it gives me the error again and the whole thing restarts. Can anyone host a lobby that can either make me 9th and give me legit stats or at least unlock all the attachments? It would be insanely appreciated.

GT: CoolStoryBro xD