Vorstus Kalkidra

Vorstus Kalkidra, dubbed The Coming Winter by some or simply Frostwalker Is the primarch of the 16th legiones astartes and commanded them during the great crusade and the great heresy.

Origins
The Primarch Vorstus was distrubuted on the Icy hellhole that the locals named Poyama. On poyama, the people of the world lived in vast underground bunkers deep beneath the surface to survive the rediculously cold temperatures on the surface above, many bunkers existed on the world and each ruled by a different faction, each set on the supplies and resources of the others. The people of the bunker Beyloran first encountered the primarch when he arrived at the bunker's surface gate, requesting access to the complex. The amazed people took him in and named him 'Vorstus Kalkidra' or Ice Lord as the primarch must have had immense ability to be able to survive the suface temperature that lay hundreds of degrees in the negative.

While the other primarchs learned as they grew and still had room to learn, Vorstus knew much of military strategy, machinery and many of the sciences. Using his knowledge and skills, Vorstus began leading the people of Beyloran in expanding the bunker as well as restoring and repairing many of their broken or forgotten machinery. These years of prosperity were challenged when their expansion converged with a tunnel drilling from a neighbouring bunker of Uskura, a fanatical populace of zealots and psychopaths. The people of Uskura quickly attempted to sack the bunker but were easily repelled by Vorstus and a force of beyloran citizens wearing modified survival suits designed for surviving life on the surface for short ammounts of time.

Not simply contempt with sealing off the tunnel, Vorstus gathered more willing citizens and led a retaliatory raid on the bunker of uskura, killing all who refused to surrender. After 37 hours of fighting, only a 10th of the bunker had submitted to Vorstus' and the beyloran people found themselves with more territory and supplies for themselves.

Over the next decade, Vorstus expanded Beylorans reach to more of the surrounding area, constructing underground train lines to carry supplies and food to connected bunkers, designating them as "stations" in supply lines spanning hundreds of miles. Many isolated bunkers were willing to join him and gladly joined their resources with his, the existing network empires made schemes to conquer the primarch's network, conquering stations and then sealing their connection to the Beyloran Network.Vorstus responded to this by devising a crude form of cryogenics weaponry that he utilised in continuous attacks, slowly wearing down their defences and defenders until they either crumbled or submitted to Beyloran governance.

By the time The Emperor discovered Poyama, the Beyloran Network now encompassed most of the known world and consisted of hundreds of train lines spanning most of the planet and encompassing hundreds of stations, each containing thousands of citizens. Small pockets of resistance were being dealth with by Vorstus' personal force of 'Frostwalkers', a small army of military personnel trained in the use of the primarch's now better developed cryogenic weapons.