It's going to be a shame when the game launches and not everyone is trying to grind a task to get vehicle repair. Tanks get obliterated so fast since they've taken away the self heal ability (not counting the repair mechanism that only fixes a critical fault). That combined with all the tight hallways, all it takes is two engineers who are focused on the tank to fire 4 rockets in a matter of seconds before you can react. First weekend was a blast though.