I was able to play the full English and French/Norman campaign until I got a huge bug when it wants to start the first mission of the Mongols I get stuck on the loading screen.
Sorry to hear you are experiencing this @Highgency9086. Would you be willing to contact support here with your DxDiag and any Crash Logs? It will help our team get to the botttom of why you are running into this.
great, now we have to run a crash course in debugging to help you fix your game