One major change that I made in this map is that I blocked out most of the large ceiling windows in this map to prevent the sunlight from coming in, thus making these areas even more dark.
Another addition to the map is the greenish ambient fog that is seen throughout the entire scene.
something that would be quite nice is to make the lights all have kinda dim light projecting outwards a cpl of meters, kinda like the flashlight, but i know how laggy that would make the game ^^ nevertheless a lil more proejctile lights, esp white, would look awesome (: