I think I can figure out the playable factions/sides. But the combat element doesn't look like anything we've seen before. Far more Unreal than WoW. Perhaps they're going the route SWG recently took? Personally, I'd love to see somebody pull off a "shooty" MMO. The genre could use a new play mechanic.
Not that I've played them, but wouldn't Planetside or WWII Online fit that model?
They are both FPS type games, but WWII Online may as well be turn based. I liked the games potential, but it moved WAAAY too slow for me...