How do you play user created content on CE?

[Stevoattheoak16]

I downloaded the Halo custom edition but wen I tried 2 go on a custom map, it wouldnt work. It just says unable to join game server . do i need sumthin else b4 i play custom maps?

[Sunray]

Do you mean online? All you have to do is download the map, put it in the maps directory and run Halo. You then open a LAN server and play a map to test it, and if you're online you go to options and show user created maps. Explain what you did to show this message. Go on a LAN server? Go on the Internet?

[343guiltymc]

When it does that, you have to download the mod first before you can join others with that same mod. Didn't you ask this already?