Everyone is a Recruit! Help!

Everyone (including myself) I see online is a recruit! When I finish a online game I am unable to earn credits, and tells me “credit limit reached”. Please fix this issue if possible. Also there are people “modding” the game itself. I’m unsure if this might be related to the Issue or not, but I’d hate to lose my Halo: Reach progress!

I have a support thread here to hopefully get an answer or solution.