"Human in appearance, but the differences are obvious. They run faster and they can tear through just about anything. And...well...they're headless."
-Confederate Scientist, 2146
In the early 1400s, scientists of the Poobyan Empire experimented on Doobyan test subjects by removing various parts of their bodies. Later tests resulted in the removal of several deceased Poobyan's heads with blades stained with W-1 virus glands. Unfortunately, this act activated long dormant genes of the Poobyan species. The test subject Poobyans became insane, mindless, killing machines.