[bigiain]

And also - what about the payload that drone was delivering, aimed at the target and doing 150kmh or more when your microwaves zapped it and killed off all the electronics. It'll only take it 2 unpowered/unguided seconds to cover that last 100m, so it'll have dropped 20m on a ballistic trajectory. It won't have hit your tank right in the crew hatch, but it's still delivered its explosive way too close for comfort. Perhaps not a problem if the target is an armored vehicle, but it'll probably still set your ammunition store or fuel dump on fire.