: I couldn't get your email to work so...I posted it here.
I think the problem with ever being able to characterize the shotgun is that whatever anyone comes up with is really practical. Why spin the shotgun on an axis when you can just pump it?
Any double-barrelled pistol-grip shotgun is strange enough, but having a break action animation AND an ejection port make no dang sense. I know it's the future but having any sort of autoloading function on a double-barrelled shotgun of that size and configuration is near impossible. I think the problem is not that the workings are so mysterious, but that as a weapon it is a strange, possibly uninformed design...