How does Vanguard encourage player-to-player interaction?

Though players of Vanguard will be able to spend their game time isolated from other players if they choose, the most rewarding experiences will be had in groups of players that learn to work together. The most obvious way we accomplish this is by creating classes that fill roles. When players filling different roles group together they are far more powerful than a solo player or a group of players who all fill the same role.

There will, however, be more subtle interdependence cooked into several aspects of the game. These I cannot expand on yet. The only thing left to figure out is how we'll get players on our PvP servers to interact! Somehow, I think that�ll work itself out...