HUB Area
In the main hall, or hub area as we called it, I wanted to add an extra feeling of the facility being enormous, so I added a view window in the form of a shaft going down under the focal object in the room. This resulted in adding depth and volume to the area. I also, as in the other rooms, added a bunch of catwalks and stairs in the ceiling to add an extra layer that you, the player, are only on one of many floors.