This isn't really a threat to an established military operation. Just another risk on the battlefield. A simple decoy/killer routine should be pretty effective

This isn't really a threat to an established military operation. Just another risk on the battlefield. A simple decoy/killer routine should be pretty effective in taking them out. It's hard to make a vehicle both air worthy and armoured. The major issue I see is that this is a terror organization's wet dream. Instead of dirty bombs and nukes, you can easily establish a fleet of these things and let them loose on a city. Put them on blimps, set them for about 500 ft., arm them with $5 motion sensors (no need for any real target selection) add a grenade or two and you have a suicide rifleman that blows up once his magazine is empty. Easily released by a van or two a few miles from the next Superbowl.