So usually you have 2-3 groups, group1 LM, group2, BS, group3 farm, or group 1 defend flag, group 2 get flag, something along those lines. My thesis is that, a RBG team that consists of 2 or 3x 5 man arena teams, could beat any RBG team without players being so accustomed to another.
So in example: If 5 people defend farm, and 5 who all are in the same arena team attack, the attackers will win the fight.
Has anyone tested this to a certain extend?