Ya I am sure you have a bug. Sorry
Yup and I just noticed this post above my own. It's the same bug I just encountered... Annoying but I will move through it...
Welp, first mission in the SP campaign and I ran into a game-ending bug (PS4 digital version w/ patch).The part where you've just rescued the Minister and his buddy and are fighting outside. At some point you decide to take an alternate route through a nearby building, but my AI guys just stood in front of the door and refused to move. There was no button prompt to open the door (where I assume there was supposed to be one). I stood there for a good two minutes trying to trigger whatever was supposed to happen, but to avail. I tried to just restart at the checkpoint - same problem. I ended up having to completely start the level over :/