Have you found parenting your Sunderer to be quite the chore? Can't leave it alone for two minutes without it glitching into a rock and mulching a dozen teammates? Babysitting not working well? Let us discuss Sunderer babysitting. By the way, hold S (backpedal) to proceed very slowly down the cliffs in the Sundy. Helps against flipping it.
Whilst TKing sunderers is normally a no no, there is 1 exception and that is deployed ones under a biolab. They provide absolutely nothing and even hinder the fight upstairs. A repair sundie can go under there but don't deploy the damn thing.