Tossing an idea out there - depending upon how long each of us has been at the Oasis, our characters may have gotten to know each other. Relationships may have formed, be it friendship, casual acquaintanceship, drinking buddies, sparring partners, etc. Teaching and/or learning new skills from NPCs or each other maybe. 

Looking at character histories and their locations during the war, some of them might even have relationships prior to coming to Oasis. Any thoughts?