I was thinking for now you need a ptz gun with a separate human controller from the human flight controller.
Well, Pan and Tilt, maybe not Zoom.
But potential modification: have a detachable PT turret, and just use this drone to drop the turret off. Now you've got the ability to do things like cut off roads by dropping one of these aimed behind along them or seal off bunkers by dropping one aimed at its door.
Short of full on AI controlled, I imagine in the near future we'll see AI handling the target tracking and shooting once aquired and a human will authorize the targets.
Once they are completely autonomous with no man in loop, the scalability is limitless. We already see INS on stormshadows where they can fly to their target with complete loss of contact.