-Lighting has been redone with a prop and env_lightglow for each one, with almost all of them now being linear so fewer lights have to be used.
-Slight changes to the layout of the mid area with opening up the small elbow as well as adding a tunnel on both sides underneath the ramp next to the toxic goo pit.
-The upper tunnel flank route has been changed to a room and the ammo/health that was below it was moved up to the previously mentioned room.
