Then let's face it: the project has no practical application in the war
The closest I can think of is the grenade drones that Daesh were using a little while ago.
The
only reason they used them was because they had absolutely nothing else that could drop an object onto a target. And because it was a pretty new concept, it took the coalition a bit of time (maybe a month) before effective countermeasures were employed.
The Israelis have this great ground based laser system that's designed to counter drone swarms like these and there are videos of it just swatting groups of them out of the sky in short order.
So yeah. It'd have no use in a modern, peer to peer conflict. Any role it has can be done better by something else, and they're incredibly fragile.
On a side note, I'd love to see someone make a hover tank, put all that effort into creating a propulsion system that can keep a 20-60ton armoured vehicle aloft for 5-10 hours at a time.
And watch it flip over the first time someone fires the main gun in any direction other than straight ahead.