From the rugged deserts smoldered by acid rains, from hive-city spires drowned in caustic sulfates and constant thud of tireless Manufactorum halls of Stygies VIII, come the Sicarian Ruststalkers.
These machine-human hybrids were created by Tech-Priests millennia ago to fight none other than the Deatch Watch, sent by the Holy Inquisition itself. The Ruststalkers challenged the Astartes in guerilla warfare over Stygies VIII’s infamous admiration of xenotech.
Their equipment and skill, both engineered to the highest precission, are still used by Tech-Priests of Stygies VIII on numerous expeditions, especially as a special ops troops. A subtle scent of oil and a faint buzz of servo-motors are the last things their unsuspecting victims experience – but only if the Ruststalkers allow it.
Their movement is increased by replacing feet with metallic hooves. 
A little detail, a litte more colour! 
Transsonic blade looks suspiciously simmilar to Necron melee weaponry…
