And drone self propelled artillery, drone light scout vehicles etc. I mean operator controlled, not autonomous ones. Seems to me they’d be not technologically that difficult to do and very useful in current asymmetric warfare. Rather than just air strikes in support of allies we could also have drone armoured units supported by allied infantry, without risking ground troops.
One major advantage would be that if the encryption on their comms was done right, they couldn’t be captured and used against our own forces, unlike the masses of HummVEE’s and tanks that fell into ISIS hands.