@Scope:
I currently do not have a finalized weapon layout for Rebirth, but I can assure you that Bottom Mid is supposed to be a viable means for taking Top Mid. As for the rest of the ground level, here is a picture that shows the flow and LoS for the ground level alone. Note that the wall structures to the right and left are T Walls and Corner Walls that have a slight curve on the ground level, and are there for ground LoS management.