I Lost my Limited Edition DLC's HELP!!!!

I was just playing halo 4 and the dlc i got from the limited edition was all gone. The 7 specializations were gone only wetwork and pioneer were there and tracker because that’s the one im on now my recruit prime skins were all missing and my strider and scanner helmet’s were gone. Can some one please help me.

This happened to me before, but all my stuff came back. Try rebooting your XBOX. It may also be a server-side issue.