I got Halo 4 on launch, and it has been working fine since then, until about a week ago. It was only last week that i decided to start playing Spartan Ops again (from episode 2), however, every time I attempt to load any of the missions it takes me straight back to the main menu (press start). The UNSC logo comes up, but then when it disappears I am on the home screen. I have also experienced this a few times when loading games online. The game occasionally tells me that I do not have the correct content, or there’s a problem with my content. So, I re-installed war games, though that hasn’t seemed to help. Help! Is there anything I can do?