Ok so is anyone else having this problem? I completed the campaign solo on heroic and now I want to complete it on legendary but anytime I go to start it, the 343 screen pops up and loads the game and brings me right back to the main menu. It’s like I’m unable to beat the game on legendary. That’s not the only problem if I want to replay any single missions even if it’s on heroic, I have the same problem. Does anyone know what this could be or how to fix it?
Try going to the dashboard and installing disc one to your hard drive.
If you get an error installing it, then your disc is scratched.
You’ll have to get a new one if so