Many thanks :) It´s pretty easy to compile maps in Alien Swarm SDK, you just need to change your game directory in Options and also remove -alldetail from your advance commandline before compiling.
Hope i could help, let me know if you experience some problems.
thank you:) wasnt able to make it without gmaps thought. but wish these contests gave us more time. the map is only made this quickly that it feels only half finishd :( you going to join any more contests soon?