Quote Originally Posted by Rongway View Post
Six parties* though. An alliance is a collection of parties. Each one is not an alliance; each is a part of one alliance. This terminology is a holdover from XI.
Well, the game calls them "Alliance A", "Alliance B", etc..instead of "Party A", "Party B", so, as weird as it seems, it's correct.

On the topic, even without BA, I don't understand why you can't simply build Alliances for Eureka, since you can already create alliances in the open world and queue for content as a full alliance.