The top shot is either great wall detail or it is the layout of the monorail track. Such great ideas in this map, just a little much for a net map, but, still one that needs to be experienced first hand to get all of the benefits. The lights on the wall shows you which part of the track is lit and/or dark. Switches in the main room control these lights. There is a sewage trench that acts as the monorail. Entry and exit is very easy and the four gun rooms turn you into a "duck" at a shooting arcade as you go around the track. Teleporters take you from one gun room to the other and to the command room. There is also a tunnel section to be explored. Some great ideas here, maybe too much for a net map since you will have to have a large group to keep this one interesting, but, definitely a place for it since it shows the creativity and possibilities with Forge. Some great moments here........worth your time. Make sure to email the author. (address is in the terminal.