Select players will finally get to play through Infinite's campaign with their friends.
Halo Infinite

343 Industries announced that a beta for campaign co-op will arrive this July for Halo Infinite. Next month, select players will get an opportunity to test things out ahead of a public launch of the co-op feature later this year.

The official Halo account says that the campaign co-op "flight" (ie: "playtest") will be available first to those enrolled as a Halo Insider. If you're already an Insider, you may want to go make sure your profile is up to date on the site to secure a better chance at being selected for this test.

If 343's roadmap stays on course, campaign co-op will officially come out in late August. The ability to replay story missions is also supposed to arrive in August. Forge mode will hopefully stay on track for a September release.

Halo Infinite's multiplayer is currently in the midst of Season 2: Lone Wolves. This season will end on November 7.