halo 2 modded maps

were do i put the changed map file so it will be played

 

E:\TDATA\xxxxxxx64\$c\In those folders are the maps.

 

ok so i take the modded map and ftp it into that folder?

 

and then it will play when i load up halo 2

 

ok i edited containment and put it back but now it says faild to load map plz help