Bad fight management

I had a few hiccups on a fight too. first i made that i could have a free attack on a monster because of spotting it in the first place and getting a surprise attack on it. and then the initiative roll and at this moment the monster is back at the center of the cavern and away from us untouched. then I have a concern on npcs. a mage dash to the monster in its attack range, round over for the mage, and then is taken down by the monster. not so smart. and after at some point when another veteran npc tries to stabilize the mage for no reason I take an opportunity attack on my own companion. I was not controlled in any way by the mosnter of course. anyway bad start and unexplicable start of a fight. Very chaotic. i hope AI will be able soon to manage fight and position and. I knew it was hard for an AI to manage 3D situations