Another Update....
Reading the posts and comments about he map pack, I asked my son if he downloaded it and when. He says he downloaded it last week, but he thinks Friday night was the first time he actually played matchmaking on a map from the pack.
He said that durning the match, everyone got booted out and so he went into another match on a stock map. That's when he got the permanent ban message.
To clarify, from my original post, he has the Limited Edition.
Reading these post, I have to say this is getting a bit ridicules. I sincerely hope that tomorrow 343 will be addressing these issues. Since no one has responded to my post (echoing the other parent on here about the "community keeping people honest) I guess we will have to go at this from another direction. But since someone suggested to post if this appeared to have any relation to the map pack, I wanted to offer up the înfo.
Thank you