Worked on the world building for a location used during the marketing push pre-release. This is a location in the final shipped game that can be found in the area immediately following Master Chief's first encounter with the Inquisitor. I was also responsible for leading a team of world builders that focused on all of the interstitial content between major POIs.
There is a ton of other great artists who worked on individual props, larger set pieces, world building, and lighting/fx. Check out 343 Industries full Halo: Infinite Art Blast on Art Station here