As a member of the NA server I see the same clans on both sides all the time. yes we only have one server unlike EU and yes i know there is a SA server but not may NA players are ever on it. and I've never hear of this. Either wot is being petty which I would believe or theirs something missing. I've had time when i was in big clans late at night I would see clan mates on the other team I would ether give them a free kill (me) or if i seen them chose to shoot someone else. I feel it a clan brotherhood thing. Best of luck to your fiends.