Baptism of Fire, cant lock onto enemies

I am doing the Baptism of Fire mission, and I was wondering if it is normal to not be able to lock onto the bandits or cumans, or if my game is bugged, but i can just walk up to them and they wont do anything, even if i hit them, and whenever i reach the second wave of enemies i always get a mission failed thing saying too many of my men have died, but no one has actually died. I have a feeling it has something to do with me telling them where tommy was, but im not sure. any help is appreciated.

This is a common gamebreaking bug. I haven’t found any way to get around it.