5 Revenge by Entropy (http://quake.midioz.com/downloads/All%2 ... evenge.bsp)
From the same author as 2phan.bsp. You can see his style.
Got to work your way through 5 levels of a fortress to make it to the flag room.
1st floor, crate room / warehouse.
2nd floor, library / lounge.
3rd floor, empty, but links to the level with the towers, and lift.
4th floor, ladder room / window room.
5th floor, flag room.
Note, there is packs in the flag room. You can also lower the bridge from there. The windows on the 4th floor do have a clip brush over them, so players can't get through there, projectiles will though.
While the color scheme is a little dull, I think this map could work.