I have a problem with my halo ce, when I made my maps I converted them and blah blah blah, then, when I moved them to my maps folder, I tried to test them with other users, but them say they wasn't able to enter the server. After that I made another server but now I used a default map (Blood gulch) and when them all joined the server I made a new game with my custom map, but after that, I appeared alone in my map (Them all said they got a "The game has closed down" message) . Does anyone knows how to fix this?

They need to have the map in their map folders aswell.