Stair Fortress is a map that has many different staircases leading to a central area that is sort of walled off from the surrounding area.  It should make a good EMFH and KOTH map with 4 or more people.
Version 1.2 changes 2 things.  First the lighting in the first map wasn't so great, so I almost completely re-did the lighting.  I also made some slight changes to some item placements.
Version 1.3 adds a step to each window from the main inside area so that you can jump out of them.  It also widens the steps in one area.