come on guys can anyone help me its not letting me play campaign or multiplayer

When That Happens To Me I Just Reset My Internet Connection,that works for me.

Yeah, you can either reset your ethernet, or wireless router. If all else fails, try posting on the Bungie/Halo Reach forums on the main Xbox website. If you tried to get a limited edition armour effect such as the eternal flames or recon then just restart your console. If you .gpd modded your profile, just put it into Modio and try to rehash and resign. That should somewhat repair the corrupted data. Or even check your hard drive, USB device, or Cloud storage system and check your Halo files for any corrupted data, marked with an exclamation point ( ! ). I hope that this helped you relatively well, or put you on the right path to fixing the error. Good luck my dear friend.

ok ill try both of you guys ideas ill get back to yall if anything happens