[Tom I]

The way I see this, it says that robots of the opposing alliance may drive under the tunnel in the final part of the game. As for a reason why anyone would attempt this, imagine if a team who designs their bot only to be able to go under the tunnels gets caught on the other side of the field in the end game. The only hope of them getting back to their tower is to go under the tunnel. I just hope they have good aim! either that, or watch the clock and don't get caught over there!