CTF Proof Of Concept
http://www.swbfgamers.com/index.php?action=downloads;sa=view;down=418 (http://www.swbfgamers.com/index.php?action=downloads;sa=view;down=418)
A CTF proof of concept I did ages ago. All files are here but I took the side mshs out to save space, just copy them in from your asset folder.
Have a good poke around all the files to see how I set them up, with a bit of work off this you can get a CTF like mode going.