A shotgun was used in the Paris attacks in the concert hall. Buckshot against massed bodies, pretty effective.
800 assault shotguns (collapsing stocks, pistol grips, extended mag, sights) = 100 Paris attacks, at 8 assaulters per.
Oh I know how effective shotguns can be. They just aren’t generally accepted as “weapons of war”. My remark was aimed at the propaganda aspect of the photo.