Hopefully I'm preaching to the choir and the main response from everybody is that this is obvious and didn't need to be said.
I read a few comments from some gross cishets about how angry they are about the female Custode. They prop up the Imperium of Man as though they are some paragon of morality and not the picture of everything wrong with imperialism. Naturally this perfectly moral force would have only men in its ranks, clearly! They don't seem to realize that if women are left out we have a sexist/mysogynist system which is not worth praising, and if they include women then it's the imperialist machine trying to keep up appearances. Frankly, I've always figured the Imperium didn't care about gender or race because everyone is suitable to die in combat and be ground into food for the starving populace.
tl;dr Men are upset that women exist and missed the whole satire
I love the Sisters of Battle, since they're just regular people. Their faith is just overzealous enough to make up for a lack of genetic engineering, psychic mumbo-jumbo, or excessive cybernetics.
their faith kind of is psychic mumbo jumbo, they can turn into saints (basically 'greater demons' of The Emperor) and have all kinds of specifically psychic/magical weaponry like a tank that has a pipe organ that kills demons instead of a turret. they also have cyborgs, cowardly sisters who flee in battle get strapped into a killing robo-suit and sent to the frontlines until they die, if they are lucky they leave the pilot unarmored, otherwise they put them into an iron maiden-style pod on the mech. also i think they still have Arco-Flagellants, prisoners who have their limbs replaced with electro-whips and have their forebrains replaced with combat drug dispensers and control mechanisms.
also afaik they do have power armor by default, its not as good as a space marine since the sisters lack the implants that allow space marines to directly control the armor with nerve impulses like their own body, but its about as good as you get as a 'normal person' without being an Inquisitor