Shas'O T'au Aloh Tak Monty'r, otherwise known as Commander Coldsteel, is a seasoned veteran of the Tau Empire's Fire Caste. He started his trials fighting against the endless swarms of the Tyranid menace, battling wave after wave of slavering,unnegotiable monsters. These battles earned him numerous accolades, including the chance to man an XV88-02 Iridium Armor Crisis Suit, and field-test several prototype weapons and devices, such as the cyclic ion blaster and Crisis suit shield generator. Eventually, the Tyranid menace cooling, Coldsteel's superiors chose to send him off to a distant battlefield in the Jericho Reach. It was here that he developed a hatred for another race, one almost as strong as his hatred for Tyranids; the Humans of the Imperium.

In their many quarrels, the Tau forces were expected to give the Imperium forces a chance to see the error of their ways, the benefits of the Greater Good, and be allowed to benefit, and several forces proceeded to join. It was one such group, however, that marked a turning point in O'Aloh's path, for one such man, armed with an explosive device, had witnessed the Tau's reverence for an Ethereal, and intended to suicide run that individual. Coldsteel's sharp senses detected this attack, and he was able to intercept the bomber, but the lack of his suit left him severely injured. In the end, he lost both an eye and an arm, each replaced with obvious cybernetic prostheses, while the Earth caste doctors waited for organic replacements to finish cultivating. Coldsteel had different plans, however; he opted to keep the prosthetics, as a permanent reminder of what a moment's hesitation or distraction can cost. Since the incident, he has come to view Humans in much the same light as the Tyranids; they are mindless bugs, ignorant fools incapable of being reasoned with, and with little to add to their advanced ways, besides. He is now like a chill wind, first a whistle of a gust (his "token" offers to the Humans, which the Ethereals still require he give), and then he washes over them, sweeping all away that stands before him. He hates Humans and Nids in equal measure, and bears weapons systems primed to wipe the swarming detritus off the field of battle.

Commander Coldsteel's suit is iridium-coated. He is armed with a cyclic ion blaster, a SM plasma rifle, a SM missile pod, and a prototype weapon, a Brightflare Projector (effectively, an incinerator). His suit also carries a shield generator, and he is bonded. I might add some other stuff (CDS, Multi-tracker; as a pure, for-fun custom, he can be a little extra ridiculous), but not right now; he's spendy, as is.