LEVEL EDITOR CLARIFICATION :
For those who needed clarification about level editors...
After discussing it with Dean AKA technomage, if you supply a home grown level editor it will be marked accordingly ( does the job, ease of use, some documentation etc ).

If you don't submit a level editor you should provide instructions on how you define levels using the tools you use in simple terms i.e don't try to write a 3D studio max handbook, but write enough to allow someone to create a level in the editor of your choice and how to get it into the game. That way people who choose to define levels in Milkshape/Notepad etc can just provide documents on what to name objects to get the game to process them as items etc. Built-In editors are also fine as long as you tell us exactly how to get them started.

I hope this clarifies things a bit better.