You can't see through an untouched starting wall of boxes

[Pengiun Joe]

That's an interesting problem, with the containers. While I think you're right, they probably will be knocked down, the ramp will prove to be a sight obstacle for everyone. If not being able to see your own robot wasn't enough, keeping an eye on the other guy will be even harder. As to your question: rule GM13 states that: "During a match, students and mentors must stand on the carpet, i.e., they may not stand on containers, the driver station shelf or any part of the field structure or on each other." So no, you've got to stay on the carpet. No height advantage.