I'm working on a map that has an outdoor area that leads into a base but when I make the outdoor area and try to add a door it doesn't work. I've tried adding a door to the edge of the sector and I've tried making doors in the middle but it doesn't work

In DB2 I can see the door texture but ingame I just get a HOM. I've uploaded the wad and attached some imagees If anybody can help I'd greatly appreciate it.
WAD:
http://www.mediafire.com/?ywecjh26vc4lhkt
Edit: The wad and the screenshots are different. In the screens I was trying to see if I could make the door work another way (i.e adding it to the middle of the sector vs building a door on the edge)