Actually on or around the same day that this started happening, Farcry4 started doing almost the same thing. The difference is that Halo freezes once I press start at the main menu the game just freezes. Farcry4 shows the game startup screen for a few seconds and then backs out to the dashboard. But I have tried uninstalling and then reinstalling BOTH GAMES 3 times and the problems don't go away. How is this possible? When I have a corrupted game on my PC that fixes the problem. Why does this not work with my Xbox? The only thing I haven tried is resetting my Xbox to factory defaults and reinstall everything. Halo is my favorite game and it sucks that I am unable to play it.