Halo 5 Guardians; What is forge? Never tried it and would like to know what it is all about.

Look it up on YouTube. It is all over the place on there.

Build your own maps. Largely for use in customs, but some people get their maps into regular rotation. How is a bit of a puzzle to me, but it happens. For example, if you’ve ever played a match of Halo 5 Big Team Battle then you’ve played on a map that was built my a community member using forge.

Thank you NH Deadpool and recon Z3RO.