I took a top gat, top right flak, top left flare, two artemis mob yesterday.
My balloon engineer left and I had already failed once yesterday at managing a mob with one a.i and Ill be damned if I did it again.
I cycled between the repair balloon command (which worked - he would camp it if it was damaged), f3 (to repair the balloon side turn engine), and f2 (he would only man the artemis - he once went to hull side but that was quickly fixed when my hull engineer took the gun from the a.i). I was concerned he would get on the flak or gatling but I never had that issue (even if my gunner was not on the gat, the A.I would not try to go up there. The a.i stuck to the balloon side artemis).
It might work on hull side too.
So, yay me.