Board Thread:Off Topic/@comment-26397825-20160103032023/@comment-27144409-20160119030344

Phantomlink959 wrote: The guns in use by soldiers and the AKs seem to use a smaller scale version, and the carrier ships used a larger one.

Here

It's a man-sized rifle (albeit an extremely large one)  but uses a firing mechanism and ammo that put out enough force to punch through several feet of solid steel and keep going. Penn'y weapon is a sustained beam emitter. The others were different. I think they were balistic.