In support for Brink's lack of damage for their weapons however, it's to encourage team play and discourage soloing. It's harder for one person to take on three people that take multiple shots to kill because it gives a time window for the other players to retaliate before they are dead, but if headshots were one hit kill regardless, team play would go out the door and one person could win the match by themselves if they were l33t enough.
This makes it all the more ludicrous that singleplayer tries to force you to be a one man army. They design the game so you can't be a one man army, and then make your NPC teammates so incompetent that you are forced to be one anyways. The result? I lose, a lot, and I am pretty sure it is not my fault.