That's a fun map :) created to be played in Quake 3 Arena. There aren't copyrights on it but if you want decompile it to create a "pro" version i prefere you'll ask me before :S
The objective of the map is let the player move continuosly in a loop :) it have a little stack overphlow problem; you must use it only with a reasonable number of bots or they will camp until uncovered and the overphlow message occurs continuosly in the console :S