Beautiful.  Designed for taking down big game, the WASP Knife injects the target with pressurized supercooled gas to freeze and rupture internal organs.  Since this would be most useful to us in a zombie’s skull, we’re working on modifying this as a better melee weapon.  Something along the lines of a pickaxe that delivers similar blows as shown in the video.  Imagine that happening to a zed’s brainbox.