Double-barreled sawed-off shotgun in Doom style. Anyway you may not have enough time to fire more, and save quite a bit on weight and maneuverability. Maybe som

Double-barreled sawed-off shotgun in Doom style. Anyway you may not have enough time to fire more, and save quite a bit on weight and maneuverability. Maybe some special longer shells with more pellets, any slight touch and those lightweight plastics break and drone goes down.