Hope you never lose commo with you’re ground drone.
Yeah… once you mobility kill a ground unit, all its shit belongs to you. Or you just leave it there, mark the location with the nearest artillery battery covering the area and wait for its recovery/repair team to walk up before calling arty on top of them.
It gets easier to dig anti-vehicle ditches as the length of the vehicle’s wheelbase decreases. You don’t need the ditch to be as wide or as deep.
Could be useful against vehicles and infantry that are on the move without anyplace to hid in but then you’d have to know exactly where to deploy to catch units on the move.