I have heard people consistently complain about the AI so im going to give some tips to command your literal brain dead undead. so first if you want to take them some were switch them to follow and dont press the wall or they might get stuck put the attack marker were the have to go to the breakable barriers. they are literally undead so were you tell them to go there going to go in a straight line even if there is a wall so you have to remembered that and if you take that and think adout were you want them to go you'll have a lot of fun the AI is not the best but it is also not that bad ether and from a lore perspective there AI makes since. let me know if this guide helped any.