The Ark of War (Crossover x Emperor male reader)

Gancaster Reinforcments Pt. 1 (New-ish)

"Into the fires of battle, Unto the anvils of war"- Salamanders Battle-Cry.

I do not own any pictures or art in this chapter, I found them on the web, and as usual, all content goes to original creators.
(also Ruby and Yang are full sisters, rather than half, and were also birthed by M/n rather than Summer and Raven respectively)
(Also, later in the story, a modified version of the Istvaan V drop-site massacre will play heavily into Y/n's history)(the incident is now referred to solely as Istvaan V)
(all members of the Royal family are born in pairs as twins of opposite genders, unless they are born as Kansens, or they are Ruby or Yang. Y/n's counterpart has yet to be introduced, but I can tell you, that she is inspired by  Vtuber/YouTuber AmaLee's avatar, Monarch)(Selene's was Terrus, Chris and Pyre is Obvious to me, as they both where red and gold, and have red hair, and the Primarch's counterparts haven't been introduced either, as they are defending the Old Imperium with some elements of their legions that were not sucked through the Warp/Slipspace rift)
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War-Droids may be found in the chapter "Take a break! Or we'll make you.". Also the officers on the Texas will be the ones most heavily featured in this Fanfic.
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1,000 Adeptus Custodes.

(Much more skilled and powerful than even other Imperial Super Soldiers, essentially Royal Guard Astartes, but better in every conceivable way. One could probably kill the Siren Empress, and I don't care what other people say, because they probably could).

250 Knights of House Aquila (Custodes Knights)

(That big thing in the middle of the Custodes, again, better in every conceivable way).

Led by Captain-General Trajan Volaris, who is technically one of the oldest in the New Imperium (Y/n's brother Primarchs are Y/n's same age, younger by a few months)