Hello. If anyone wants to talk about Halo Map Design, come join the discord channel: https://discord.gg/011cIgIZY5xq4bwSr. I look forward to seeing you there!

http://www.nexusmods.com/halo/ for mod publishing.

http://haloce3.wikia.com/wiki/HaloCE3_Wikia or http://wiki.nexusmods.com/index.php/Halo for tutorials.

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I am working on getting synchronizations to work with Relay, which is a tool included with my Zeus program for Windows (and later for OS X) which is a general Halo editing and utility program. I can share a download link to this afterwards.