But we already know that tanks are vulnerable to relatively cheap small vehicles, so this is not a comparative disadvantage. Also consider that tanks are dispa

But we already know that tanks are vulnerable to relatively cheap small vehicles, so this is not a comparative disadvantage. Also consider that tanks are dispatched in small groups; they need to be able to defend themselves. But a swarm of buggies could have weapons optimized to defend each other -- a shotgun is pretty effective against small suicide drones, and nothing defends against a laser-guided bomb anyway.