So we are all (mostly) in agreement that other religions and such cultures are best left as mini mercenary’s that can be hired to help the cause of either the faithful or the heretics but what are your ideas for the lore, story and history of these groups?
Here is a list of things that I would personally like.
The Hindu faction has this massive fortress in the tiebetian mountains as the Arsura have all but completely overrun the lands below with only a few strongholds of Hindu strongholds holding out against the tide of Arusa.
The buddist faction has something similar to the Hindu faction in terms of base but as the dark energies of hell came forth from the pit bad karma took on a hideous life of it's own transformating into disgusting abominations which are fortunately generally less intelligent that more other unholy creatures.
A group of Norse men that are willing to work with the faithful but refuse to convert due to a combination of the rather disturbing aspects of the faithfuls armies such as the takwin creatures and the communicants as well as the fact that much like the sultanate they are not going to simply forget that it was Christian forces that opened the gates of hell but with all that said they are more than happy to raid and pillage for any one who can pay them to.
The native peoples of America both the Aztecs and the North American tribes are struggling to fight off the black grail but they have managed to establish contact with Europe and have some trade routs suppling goods but the heretic sub marine fleet makes this a dangerous journey indeed.
In Japan a Tori gate has been corrupted and legions of dark yokai spill out from it and the people of Japan have been forced up into the northern half of the country and in china things are even worse as demons from their mythology has conquer 2/3 of the country held only by the Great Wall.