>>535934915
We already have real-life revolver shotguns. It's an oddball direction to choose but appearance-wise, the Bulldog looks just like a SGR-12 airsoft gun with a drum mag. Mixing it and needing some rotation system from the pump is a very weird decision but drum mags today tend to have feeding and reliability issues, then we have shotgun mags who in general are still a work in progress in reliability due to size of bullets needing to be pushed up into the gun. I assume the UNSC in 500 years couldn't get it right so they're trying more novel solutions, a bit a freaking weird choice.