Getting Warhammerred [WH 40k Fanfic]

In the forgotten annals of the Dark Age of Technology, a dormant bioweapon waits, its existence buried in the shadows of mankind's once-glorious past.  A sinister ritual, shrouded in darkness, now threatens to merge this enigmatic weapon with a soul plucked from a higher dimension and unleash Chaos upon the grimdark future of the 41st millennium. But can it succeed? Or how soon will it go off the rails on the off chance that it does succeed? The fate of this perilous venture hinges upon the awakening of the soul, reincarnated into an eldritch form, stranded upon a desolate world where the guiding light of the Astronomican no longer shines, surrounded by naught but the lifeless husk of the planet that stands as the memorial to all those that died to birth this being into existence. What choices will it make when those who seek the bioweapon within its very being draw near? Will it fall prey to the myriads of predators stalking the stars or will those very same predators tremble in fear at the sight of this monster? The future teeters on a knife's edge, awaiting the awakening of the unexpected. At least that's what everyone else is thinking. Everyone who is not the long-dead soul of an average girl from 21st-century Earth obsessed with sci-fi as she had the dubious fortune of being yanked out of her boring afterlife and reincarnated into the body of the previously said bioweapon.  Follow along as she has to wrestle with both her body and soul while the dark undercurrents of the grimdark future threaten to drown this newborn Eldritch monster with a penchant for admiring herself in the mirror. Extra Tags or something: - The first bunch of chapters are rather rough around the edges. Might rewrite them sometime, but for now, the sub-arc dubbed 'wandering in the city' leaves some things to be desired. -This is far from what I'd call a literary masterpiece, I'm trying to keep it from being fully wish fulfillment and power fantasy but balancing that and my MC not being a ragdoll for everyone in the setting is surprisingly challenging. I do not own Warhammer, everything aside from my Original characters belongs to Games Workshop.