Extermination

5th December 2437
Science stations above Earth have finished research into a new bio enhancement allowing for the addition of extra bodily functions. Thought to be complete, these samples were sent to Earth and their three factions to allow them to become more should a greater threat other than each other finally endanger Earth. They were however, wrong.
Test subjects given the new enhancement began to writhe in pain, screaming, twisting, drowning in their own blood. They then awoke again, stumbling for others, spreading across the stations, infecting those on board.

The time now is not for war against each other, but against the abominations that Humanity foolishly created. Prisoners convicted for life for crimes against their people are given a second chance, a new life as Exterminators, equipped with Humanity's finest equipment to purge the infected, and state of the art armour to enhance strength and withstand a speeding truck. This is their true test of faith to the people who imprisoned them; Their own race or a short lived freedom.