The Halo Infinite Network Campaign Coop Beta has started, allowing gamers to test this gameplay mode on consoles and PCs.

“We’re excited for players to be able to jump into Halo Infinite’s campaign with up to three friends and experience the Master Chief’s fight against the Banished together,” an announcement email notes. “Please note that the Halo Infinite Campaign Co-op beta will feature an in-development gameplay build that is not necessarily representative of the final experience and is subject to change over time.”

The Halo Infinite Network Campaign Coop Beta runs through August 1 and be available to play at any point through that date. It’s available on Xbox One and Xbox Series X|S consoles and on PC through Steam. In both cases, players need to be registered for the Xbox Insider Program, but PC/Steam registration closed on July 11. (You can still sign-up on console.)

You can learn more on Halo Waypoint.