User blog comment:Echo 1/UNSC Weaponry seems unrealistic/@comment-74526-20100715161441

Because railguns require an awesome amount of power to work, the recoil would probably kick like a mule, and as far as I'm concerned, it would need a sniper-length barrel to meanignfully accelerate a projectile. The UNSC does actually have something like that in the form of the Stanchion sniper rifle, but it's a coilgun as opposed to a railgun and it's only used in very special situations (like when you have to shred the driver of a truck loaded with bombs from behind a skyscraper and not harm any civilians).

Considering that most UNSC warships can only carry one MAC (that they're literally built around), cramming a MAC and a plasma weapon into one ship seems a bit unfeasible. Nevertheless, fanon marches on!