[quote=@VitaVitaAR]
Shadow Eternity's official motivation is to take down the UMMA and destroy their influence across the multiverse, so they do have one that's not just "evil".
[/quote]
That's a goal, not a motivation. Distinct difference. Motivation tells people [i]why[/i] they want to bring down the UMMA, or at least the reason they give to their grunts.

[quote=@VitaVitaAR]
... When the Leader's actual motivation comes out I imagine there WILL be a lot of splitting and chaos on their end though. Which should be fun.
[/quote]
See, that assumes the RP won't crash before we get there to due the aforementioned combat glut.

[quote=@VitaVitaAR]
The UMMA's meant to be fairly clear-cut, though. Not that there's not going to potentially be bad people trying to game the system in it or something like that. But as a whole it's intended to be fairly straightforward.
[/quote]
The very fact that there's an organization that exists to "protect the multiverse" but still clearly meddles in the affairs of various universes and has no clear-cut authority backing them up (The denizens of the multiverse sure didn't vote them into power) leaves room for tons of ambiguity that is currently going to waste and would be an incredibly simple and low-effort way to help the roleplay dynamic. You yourself said [b]"I hardly want this RP to be endless combat. That's not very fun and it's also difficult to GM."[/b], after all.

[quote=@VitaVitaAR]
 Still, I do think there's potential for non-combat stuff, which I think is helped by the factionless characters.
[/quote]
See, there's that thing: Factionless. Without any reason to get involved in the affairs of either faction. Just-so-happening to cross paths with other people, often in a violent way because they are for the most part violent sorts of characters. Hell, [i]I'll[/i] write up the factions if you like, seeing as you're clearly busy with those two unapproved CSes.