Russian invasion of Ukraine

God knows how they are supposed to target and track them and keep stable when firing,

A load of consumer drones have a built in optical tracking function that uses a neural net to automatically orientate the drone and it's gimball to stay centred on a moving object. You just have to designate the target on a touch screen and then the drone takes care of the rest.

Not suggesting they can stick a gun on a Mavic pro but I'd be very surprised if that code/tech wasn't easily spliced into a custom drone with a gun instead of a gimball.

Edit: just to add, the Mavic drones that have object tracking use the same tensorflow configuration that Zoom uses for blurring out backgrounds on video calls...seems even more likely that it would be easily adaptable for this sort of purpose if you had the resources.