So you pulled a Sunderer for your team. Awesome. Then you drive up next to the enemy's base, and park the Sunderer. Then you leave it and go have some fun trying to kill stuff. 5 minutes later, an enemy spot the Sunderer and starts to damage it. You saw that, but ignore it because some other engineer is fixing it. 10 minutes after that, the enemies mob your Sunderer, and your team loses the momentum of the push. Congratulations. Seriously--I know this is a game, and we all just want to have fun. But trust me, the game is much more fun when you perform your role properly. If you pull a Sunderer, stay and guard it. Move it when it gets attacked. There's nothing more awesome than surviving a raid to setup at a new place, and takeover the enemy's base.