As a Community Cartographer working on a volunteer basis for 343 Studios, I was responsible for various tasks related to matchmaking sustain after the initial launch of Halo 4. The sustain lead at 343 asked me to rebuild Relay for 343's upcoming matchmaking update. The map needed some exploit, geometry, and miscellaneous updates to make it viable for the current progress of the game. Relay was the on-disc shipping Forge (custom map) variant of the canvas Impact. This rebuilt Relay is available in the current version of Halo 4 on Xbox, or can be downloaded via the Halo 4 File Share website.