"Ace in the hole" haha!
Nice video and it looks even more polished then your last one.

AI gunners can be frustrating. They will only fire (as you saw) if the plane is banked to a certain level. Probably big climbs and dive also I imagine. Once you straightened out oh so slightly he opened back up.
I have actually never seen the gunner animation in action before. Very nice work by OBD.

When I fly my Brisfit my gunner rarely shoots as I am always hoicking around.