I've done that in Planet Side. It is boring. You don't feel like you're really helping the cause any. After you see a couple large sieges, the wow factor wares off, and you go find something else where you feel like you're contributing.

Tearing down another's work is always a good sign of a solid argument.

When I hear this I'm afraid that it will just be one step above a co-op game. Just not what I would really want.