User blog comment:CoD addict/Anachronisms in Call of Duty: Black Ops/@comment-3171236-20101229061550/@comment-28584497-20101229063111

That's what semtex was used for... knocking out vehicles. You COULD potentially stick it to an enemy, but it wouldn't be as effective. Just dip a frag in tar and use that.

JSYK semtex is just plastic explosives. It can also refer to C4.