

They have tried shotguns, nets, other drones, rocks, food cans, their guns when they run out of ammo, swinging their guns like a bat and many other things.
The drones are often used to attack inside established dugouts and such. They fly into the front door. So the defenders often do have shotguns and specifically for that purpose.
Drones are hard to hit, though.
I also try not to watch it much. But every video I have seen, has a novel approach to drone warfare. Every single one. Truly fucked up and wild times.