I agree that for the role these things were adopted to fill in the 80's, and potentially even now, that they would probably do well being fired from a moving vehicle out of the window. Of course, if the vehicle has ballistic glass and other protection, I would resist the urge to crack the seal and return fire, since that agency's mission success criteria is getting the principle from point A to point B, versus being caught up in a decisive engagement along the way, especially if ballistic capabilities are doing just fine at protecting all of the occupants. That said, in a soft-skinned vehicle, shooting out of the window that has been opened either by an occupant or gunfire from either direction is definitely an option that should be exploited. And in the event that the vehicle becomes inoperable, and the team and principle are forced to dismount and fight their way to safety, at that point (which is a worst case scenario) I think I would like to have a stock on my shotgun. According to the internet, USMS are equipped with weapons that I think would be preferable to any shotgun, such as Colt and HK 9mm SMG's, as well as Car 15 and M16A2 rifles- any of which I would prefer over a scattergun that requires 2 hands to fire and cycle. Maybe these other weapons weren't available to USMS in the 80's, I couldn't say. But I know I have been in more than a few 2 way gunfights from various types of moving vehicles in various types of terrain, and even though a Benelli M4 full of 00 was present in every vehicle I rolled in, that gun was never used or even picked up once ordnance started getting exchanged. YMMV.
upon touching off that first shell.
