Ok I have a map containment and I modded it, so I FTP it to my xbox but it doesnt show up on the maps selection screen please help me.
Did it show up before you modded it? If you don't have the Halo 2 updates installed for the newer maps you can't play it. Also, you shouldn't have to mess with mainmenu.map at all.
yea the containment map should go in here Tdata/4d530064/$C/ if you dont have the updates you wont have that folder...