* ActorAllusion: It may be unintentional, but [[VideoGame/{{Persona3}} this is not the first time]] that Creator/YuriLowenthal voiced [[spoiler:the protagonist of a game, along with a god of death sealed within his body.]]
* CrossDressingVoices: A few generic female soldiers are voiced by men in the story.
* NamesTheSame: No, the game has nothing to do with the Chaos Space Marine legion of TabletopGame/{{Warhammer 40000}}.
* SignificantDoubleCasting: In the English dub, Creator/LiamOBrien voices both the "sister-loving-man-cow" Levin and Raksha, one of the three World Eaters. [[spoiler:After betraying the cast, it is revealed that Raksha had crushed Levin's soul ages, allowing him to move freely while his real body remained sealed and keep tabs on all of his enemies.]]