
Last year, it was announced on the Halo: Waypoint website that 343 Industries would be working with a coalition of modders from the community to dive into "the darkest depths of ancient folders" and salvage what they could from the cutting room floor of 2001's Halo: Combat Evolved, then bring those scraps to the Master Chief Collection, which came to PC in 2019.
They released a three-part blog series: "Cutting Room Floor", "Cutting Room Corps" and "Cutting Room Lore", then went dark until last week, tinkering away with what community writer Alex Wakeford calls "the secret tenth circle of Hell (the cutting room floor of game development)". Fortunately they survived Cortana's Inferno, and came out with some real gems.