Originally posted by DarkC
Then it isn't really scientifically accurate.The extreme heat, despite the cauterization of wounds leading to no exterior bleeding, can fuse bones, organs, and tissue in a rather sloppy mess, in many cases leading to rather painful deaths.
Think about what happens if your stomach got fused with a lung.
So it does penetrate the skin, just not in a way that it spills any exterior blood. Gotcha. I'd say plasma and bullets in Halo are roughly equal in lethality. Except in space vacuum of course.