Exploding drones field upgrade suck

Loving the game so far but just want to point out how bad the AI for the first exploding drones are.

Like their verticality is so bad. Never seen them able to go through windows and quite often get stuck by obstacles you'd expect to see them fly over. They seem to be unable to get through doors too.

Your best bet is planting the base in an open space knowing that they'll probably be restricted to that area.