Can't play single player

I tried to continue with single player but the game keeps crashing after it’s loads the commentary of mission “hold the line act2”… the game worked prefectly fine before… I wasn’t able to upload a video of the issues I’m having but I would like to get fixed if possible… I have the game downloaded on my console, I’ve tried everything, reinstalling, installing on external hdd, installing on internal hdd… and nothing seems to fix it… plz help I bought the ultimate version and can not finish playing the story mode