if u didnt know how to do it it is done like this(from 
http://www.jediknightii.net/gamecodes.shtml) 
 One impressive multiplayer cheat is the double-bladed light saber. Here's how you activate it: 
 (1) Start a multiplayer game.
 (2) Select your lightsaber, and turn it off while your still holding it. (Press #1 two times.)
 (3) Activate the console by pressing [SHIFT & ~]
 (4) Type devmap [map name] - example: devmap ffa_yavin
 (5) type /THEDESTROYER into the console. 
 the thing is first when i am playing in the dule maps like the pit i do 
 devmap dule_pit i get
 some things and then
 no map in this name soem thing like that and then when i do the chat /THEDESTROYER i get chats are not enabled in this server and /THEDESTROYER unknown cmd please help