When will Firefight mode be released for Halo Infinite?

As of the knowledge cutoff date, Firefight mode has not been officially announced for release in Halo Infinite. The game developers, 343 Industries, have not provided a specific launch date or confirmation that Firefight mode will be included in Halo Infinite. Instead, the development team has focused on other updates and improvements to the game including new content for the multiplayer experience and enhancements to the single-player campaign. Fans who are eager for Firefight mode or any equivalent cooperative player versus environment (PvE) mode should stay tuned to official announcements from 343 Industries for any future updates regarding Halo Infinite's post-launch content roadmap.