>>96327367
>Morally good actions dont require that the person be moral in the first place.

That's not what's being argued here, no one has made the claim that killing demons is bad.

>Thats the whole basis of redemption, a sinner can be redeemed, but they have to earn it by seving the moral good and doing moral good from then on in service of a moral good, in this case, the moral good of heaven, and heaven is not morally gray, its not suggested to be so anywhere in this. The soldiers are fighting the demons, like the soldiers of Osgiliath are fighting orcs. They are not morally gray because they get dirty with their tactics, because they are serving the moral good, they are holding back evil.

Abandoning good to defeat evil at all costs isn't widely accepted to be a good thing. And even Christian ethics would dictate it's better to be a martyr than to engage in sinful activity as a pragmatic tactic.

>What about the christian TC factions makes them bad morally in the context of the setting. What are examples of the christians in this being moral gray, or is it based on their aesthetics?

The mutilation of children is a big one. The actual lives of people not on the front lines hasn't be delved into that much but what little we do know doesn't paint a pretty picture, people worked to death in factories, overall poor conditions not just because of the war but because of the resources spent on cathedrals, monuments and the like. Internal conflicts are common and not just the kinds caused by devil worship, fights between different sects of the same religion. And if you ascribe to Christianity, a lot of what the church does with the meta-christ is straight up blasphemy.

It's also unclear if these actions are actually required by their situation, as other groups fight successfully without resorting to using things like meta-christs or mutilating children.