How do I play my custom Halo 3 maps with others on Xbox Live?
Saturday, December 11th, 2010 at
2:37 am
I have made some really nice maps in Halo 3’s forge, and I would like to share them on drugs online Xbox Live with everyone. I would love to play it with the entire community. I have uploaded it to the file share, but I really don’t know how to play it with everyone. Can someone help me?

If you want to just play it with random people, sorry.
However, if you play on Custom Games you can invite people to play on your maps (especially your friends).
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You have to start a custom match with yourself as the party leader. Invite your friends into your Lobby, then load your custom map and begin the match. Hope i helped.
What I do is I join someone elses game that has 8+ people, and then I ask the party leader to promote me. once they promote you, YOU are in control of what maps all the other 8 or more people get to play.
You can also get an account at Forgehub.com and post in there forums.
You can post in Bungie.net’s forums.
You can ask people if they can put YOUR map in THERE file share.
PS: ADD ME my gt is this: KillerKush1993