This is some concept art and (WIP) Blender models made by Jeyo of what could be the standard soldier of Korrigahnn, called Inferion. Rather like the standard Stromlings of LU. There will of course be weaker and stronger variations of this guy, but this is the base design.
These warriors have very dark red skin that's only visible on their hands and head. They have slitted orange eyes that glow. The armor they wear is gunmetal with a tinge of brown. It is designed to look like the patterns of fire. Their helmets are the same color and are angled and spiky. They have large openings for the eyes (and the flame that occasionally leaks out). Their arms are clad in the same gunmetal armor. Most Inferion wear a thick belt with a large gold buckle shaped like fire. Their legs and torso (under the armor) are black.
Certain higher-ranking soldiers wear a heavy pauldron on their right shoulder, held in place by straps that go around their torso. Others have four gold spikes over each shoulder.
I imagine it takes two hits from a sword or other melee weapoon (unless charged or imbued with extra energy) and three or four hits to kill them using fists. Pistols and other small ranged weapons can kill them in two shots, while larger weapons can take them out in one.
These warriors deal a small amount of damage and are often seen in large groups. They are among the first enemies to be seen and appear on just about every world.
The Inferion wield flame-enveloped swords, dual knives or other melee weapons. They can launch fireballs every 15 seconds (meaning they usually only throw one before you kill them).
A group of standard Inferion can be summoned by Fire Wraiths.