search halo mods on Google It's the first link then look at the link above... Unrar the .map file from the website and place it into the maps folder in your halo custom edition folder when thats done, press the '~' key on the top right hand corner of your keybard, and it will access the console command type in 'sv_maplist' to see the map list type in 'map_name' with a space after name, followed by the map name voila, iff you need any more help, send me a message