Reality Factory

Was wondering if this would work with RF? Looks pretty good.

http://kristianduske.com/trenchbroom/

Reality Factory's RFEditPro level editor does open .map files which is a Quake format so you might be able to create a level using TrenchBroom then save it to a .map file then open it with RFEditPro. You will need RFEditPro to add entities and compile.

Unfortunately, it crashed on my 64 bit win 7 machine.