TUNNELS
Roy gave a small snort of amusement. "Well, the ESN ban on plasma weapons predates any exposure we had to plasma weapons from other races. We tried them...I think a century ago? Maybe closer to a century and a half..." He scowled for a moment in thought, then shrugged. "Our approach was totally different from the Qarl, might have been closer to what the Demons did, although I've onky ever seen the Demons use plasma as a grenade weapon, and we used it as an energy beam, so there's some kind of difference that's way beyond my level of technical understanding..."
Again, he shrugged. "Anyway, Humans ended up banning plasma weapons because the power supplies were like small, really unstable nuclear reactors, and when they failed the collateral damage was immense." He gave a twisted, almost sad smile, and added, "Everyone agreed the risks outweighed the benefits." He sighed, and shrugged again.
"The Qarl plasma was...well, is, since they presumably still use it...weird stuff. It's almost like highly energized acid...it clings to whatever it hits and starts eating it...bare flesh is almost instantly consumed, armor slows it down some...metal, like a mech frame, is even slower." His expression darkened as he recalled the effects. "But it clings to what it hits and just keeps going until it burns through or burns out. The folks that carried the captured weapons liked them because the plasma works on pretty much everything...but every time I saw one of those pistols, I saw a gigantic 'kill the whole squad' button just waiting for an enemy smart enough or lucky enough to shoot one and make it cook off."
He leaned back, against the tunnel wall. "Now, by comparison, Demon plasma was easy to deal with. It was hell on any organic material it hit...but you could duck behind a bridge console and be untouched by it, or just step around the corner of a side corridor...it went out in a straight line from the source...their grenades...but there wasn't much of a 'splash' effect when it hit inorganic barriers. Even body armor helped a bit against it...the plasma wouldn't each through the armor plates...it would just erode everything in between them. We had people who lost parts of limbs to that stuff...after the smoke cleared, you could see what was left of an arm or hand or leg...the parts behind armor were intact, maybe even potentially viable...but the stuff that had been at the seams was cauterized, or worse. And some people thought THAT was a good weapon to carry around. It got to the point where I started giving ultimatums...'Anyone carrying a plasma weapon is NOT part of my squad, even if I have to take you on this mission...' And, gradually, people started to realize that we were still doing a damned good job of killing the enemy without having to utilize weapons that we didn't really understand." He chuckled again.
"So many races out here got so used to fighting with energy and pulse weapons that, with the exception of the Largrans, they forgot how dangerous projectile weapons can be. Most of them don't have much protection against a high-velocity slug. And, I've gotta say, whatever I think of them as a species and an enemy, the Largrans make some damn fine projectile weapons."