Prosperine Steel (M!Reader Prosperine Guard; RWBY)

(I apologize for this heresy. Getting inspiration for how this'll go from the Nazi's in Remnant story. Forgive me xD)

The Imperial Warship Lasterine's Fury is a frigate during the Dornian Heresy. Captain Polaren wearily looks about the bridge at his crew, alongside the remaining Prosperine Guard officers on-board. Prospero had fallen, so say their Astropaths prior to their deaths, and the Traitor Legions have begun their travels to Terra. The vessel's Geller Fields have suffered severe damage whilst travelling through the chaotic seas of the Warp, the souls of the thousands of Psykers inside attracting large amounts of Daemons. The Navigators have fallen, dead or unconscious. The few hundred vehicles the army had brought reduced to nearly half that number, the thousands of Prosperine Guard exhausted from work, training, and assisting the Navigators. However, as if blessed by the Emperor and the Primarch Magnus, the warship had entered realspace in orbit of what would seem like a Paradise World.

Fifteen Astartes of the Thousand Sons Legion, five thousand Prosperine Spire Guard, hundreds of vehicles, and an adamantium will. Sergeant (Y/N) (L/N) of the Prosperine 31st Mechanized Infantry Regiment is the second-highest-ranking officer, below General Nour. Now, the question was... was this planet Loyalist, Traitor, or yet to rejoin the Imperium? Would they accept the Spire Guard with open arms, or with crossed swords?

(ART IS NOT MINE, UNLESS I SAY SO. The Dornian Heresy story belongs to the cool people at Bolter and Chainsword/Games Worlshop. Any OC's I might think up or use are mine (or yours), Warhammer 40k belongs to Games Workshop, and you belong to you. I've not read anything other than Ultrasmurf crap lately, and I'm writing this stuff while offline. So please, excuse anything I do wrong and politely point them out. ^-^ Remember, this is Dornian Heresy stuff, not Canon stuff. Apologies if my writing styles come and go, I'm experimenting.)