I'm having trouble lighting the sky in my map. I've done it before as you can see in my MPH Combat Hall map, but now it's not working and I don't know what I'm doing wrong. I tried using a light_spot and setting to "is sky" and I also tried a light_environment. Is something I'm forgetting?
EDIT: Fixed, I had forgotten to add the "sky" texture to all faces of my sky brushes.