A good teammate is someone who is a team player, and is always willing to take a specific action for the sake of the team.
A good teammate is someone who is not only thinking of themselves when making game-based decisions, but also of how their game-based decisions could affect their team or teammates.
A good teammate is someone who doesn’t sit on the team just to reap the rewards. They work to reach the minimums that have been set by leadership (leader and officers), or get as remotely close as they possibly can.
A good teammate is someone who is willing to help other players in their team out whenever they can, if they can, whenever it is needed.
A good teammate is someone who does not start stuff with other teams that could potentially get their team into serious trouble or conflict. This especially applies to Atlas teams.