Haha ok, you got me, I'm terrible at this game and just want everything nerfed. Just check my stats I linked. Awful. They are not sitting ducks for snipers, since they have both the bubble and blessing of light (which allows you to live through a sniper headshot). And given that the titans had their super up after they got killed both times, all they need to do is either a) go back to the new spot and start throwing up bubbles again or b) pick a new spot and throw up bubbles. This is like the armor lock glitch from halo reach...you could keep going in and out of the ability without taking any damage, essentially extending the length of your ability and getting all your health back, and just come back up when your teammate comes back. It's low risk, high reward, exactly what shouldn't be available in a balanced pvp game.