Halo: The Master Chief Collection received a playlist update on July 14 that brought back the Gun Game-style Escalation Slayer mode and removed a fan-favorite, Grifball.

In Escalation Slayer, you get a new weapon each time you get a kill. The fast-paced, frenetic mode is playable in Halo: Reach, Halo 2: Anniversary, and Halo 4 inside MCC. There is a dedicated playlist for it accessible through the match composer so you can play it 24/7 if you want.

As for Grifball, the popular mode involving huge hammers is now out of rotation. This is nothing out of the ordinary, as developer 343 regularly updates MCC's playlists.