Firefight is coming to Halo Infinite as part of the December Update on December 5 in the form of Firefight: King of the Hill. Firefight is a PvE survival mode where players must battle against waves of enemies, which has appeared in previous Halo games but wasn't in Halo Infinite until now.

In a blog post on Halo Waypoint, technical designer Connor Kennelly detailed how the new Firefight: King of the Hill mode will work and how it differs from classic Firefight. The mode will have matchmaking and allow up to four players in co-op. As the name suggests, there is a Hill that you need to capture that the campaign enemies are also trying to capture. A round is won by capturing the hill and defeating the boss wave.

Matches accessed through matchmaking will consist of five rounds, and players will need to score three points to win, which means winning at least three rounds. A round is lost if the enemies capture the hill or if the entire team is wiped. When it comes to respawns, Firefight: King of the Hill does away with the shared pool of lives and instead has a lengthy respawn timer with the option to revive teammates at your own peril. The traditional life pool is available as an option in custom games.