[lukoil]

вообщет на англе ничего про друг с другом не написано:
In patch 3.2, Call of the Crusade, players will be able to work toward the all-new tier-9 class sets by competing in the Crusaders' Coliseum. To keep with the themes of the Argent Tournament, players will notice this time around that the Horde and Alliance have unique looks to distinguish them apart.
http://www.wow-europe.com/en/info/underdev/3p2/tier9.html
скорей всего переводчик хотел написать сражаться вместе...