Noctum Aeternus

So, after the last patch, my Halo MCC has been freezing at the title screen after I press start. It will start the animation and then freeze, drop all music, I've tried hard resetting the console, force closing the game, nothing works. Anyone know what the deal is here? I'd rather not have to re install the entire game from scratch (seeing as it takes for feaking ever) but if that's what it takes, better now than on Dec 29th when I want to play the Halo 5 Beta