Destiny has a multiplayer focus, that much is clear. In the artwork seen, groups of 3 has been a recurring image. A statement from a person claiming to have seen it in action mentioned "a group of 3 players doing a mission, where they encountered another 3-player group already at the mission site". This is of course wild speculation from my side, but I'm guessing that 3-4 player groups can be the "norm" in Destiny, with group-to-group interaction in a kind of pve-style environment, but obviously open for things like 6-on-6 or 8-on-8 deathmatch type modes. Does this sound sensible, or do you guys have any other information/guesses?