tHE ut2004 map file goes to the maps folder
CTF4-(ITC)Leviathan

To this map work you need to dowload the CTF4 mod
To download the CT4 map go to one of the Links Bellow:
http://geeks.beyondunreal.com/ut2004/mappacks-ctf4.php
http://ctf4.apartment167.com/

All maping credits goes to James Schmalz