"I think it would be nice if every clan had their own battle music, just like how each one has its own background showing a vista of its territory during fights. Each Fantasy Rivals faction has its own music as well as its own background, so why not do the same thing here?"
I fully agree with this. However UR has a huge amount of clans compared to FR, and giving all of them their own theme.... I say that's both too time consuming and I fear it would be mediocre.
What I'd prefer is quality over quantity. Just have 1 excellent main theme and remix this song for the various factions. The Nightmare
theme would have an ominous pipe organ, Junkz
would get DJ music with scratches and all, Uppers
could go the classical route, La Junta
would sound REALLY LOUD AND PATRIOTIC, Ulu Watu
would be typical Hawaian music and Montana
... I don't have to tell ya what a Mafia theme would sound like, do I? I do? Jeepers, go watch Godfather you darn cavedweller!