The Fallen into Chaos

This band of Fallen heralds from a long-ago task force of the Janissarius Imperium. Sent on a far flung mission, their craft was lost in a Warp storm. During the decades of it's presumed loss, the unlucky few made use of their time training, attempting to attain perfection, becoming obsessive zealots of the art of war. Through this crack in the normally impervious armor of the Space Marine mind and ethos, Lord Slaanesh began his insideous whispers. So long had these warriors been idle, the crack became a break, and the Fall occurred. Now outcast from their brethren they have grown by gathering misfit bands of other Traitors and actively recruiting those already teetering on the edge of loyalty to the False Emperor.