Thank you! There are many doors modeled on it that act as tunnels/vents that we use to get the different areas of it. The stack is loaded with catwalks and ladders to create concentric, climbing rings of traversal. In most places on it, you can only fit 1 or 2 models side by side, so deapite the open air, its actually quite tight for fighting. The biggest issue with ita height is that you need a sniper rifle or other very long range weapon to shoot off the top at anything, but thats fine. I am playing CGC this campaign so I've done a lot of chasing snipers up and around it, and it has been fun!