Kill bots are used right now in Ukraine, including ones with no operator in the loop (too slow)
Details?
If you want to kill some redacted that are sitting in a trench inside the killzone but don't want to risk your own life, the ground drone with a machine gun (remote operated as of now) goes there. It was April this year when the news were saying a position was taken over by remote drones alone. With news being Ukrainian propaganda you can of course take it with a grain of salt, but it's probably at least somewhat true.
Ground drones however are targeted by the FPV drones (wired or radio controlled), so the new thing is to have a thing with automatic targeting to shoot those. Then again, I at least heard about using something open-cv (yes, some of those run actual linux) shaped on the FPV drone itself, as it really helps with the amount of jamming going on.
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