Alright here's my problem I am unable to play the Campaign Mode of Halo 4. I can watch the prologue just fine, then I try to go to do the mission "Dawn" I click Rally point AlPHA and it says "Players failed to load content. A player may be missing downloadable content. " with all this being said I want to say that I downloaded the 2nd disc of Halo 4 first & then proceeded with disc 1. Had a Halo 4 update and then proceeded to the campaign mode. I even went as far as uninstalling the disc download & reinstalling, nothing. has anyone else had this problem? how can I fix this?