The Dragon does have a limited ability to fire. Eventually, after too much firing (as indicated by a circle around the target reticule), it will overheat and have to slowly cooldown before you can fire again. The targeting is perfectly accurate, but it is not very effective at killing high HP targets.
Henry - the who vs who thing is a display on the left side of the screen showing the factions of all the players and which player is there.
http://i.imgur.com/gAxAJi9.jpg It stays up all game long.
