I have look about 10 Videos about the Liu Bei Campaign and found this one youtu.be/3N55nSVlWec?t=1125
At mark 18:46 you can see the ai attack from 3 different sides on this salt lake base. I never seen such things in Total War before. The AI always attacks from on spot and this was sooo bad. It seems ca have improve the ai for the first time. I really hope they hold her strategists behind the lines and use her units meaningful.