"Red Fury" troopers are humans with jetpacks, able to travel (jump) through the air for medium distances.
They're armed with 2 Plasma Pistols and 2 Flashbang Grenades and serve the Human-Volterite Alliance, attacking Kal Wardin in N.O.V.A. 2. The fact that they use jetpacks adds in the need for light armor and considerable amounts of fuel on their backs, hence they are relatively easy to kill due to the explosion that follows damage to the jetpack. In the mission "Driving By" Kal finds Golden Jetpack Armor, but says flying in it is not his style of travelling, so he doesn't put it on. Kal has been more of a "Ground Person".