Halo Infinite’s online campaign co-op playtest is now live, giving fans an early look at one of the game’s most anticipated features that wasn’t there at launch. As previously announced, players must sign up for the free Halo Insider Program to get in on Xbox and PC.

The network test runs until Monday, August 1, so players will have a good amount of time to try it out. Developer 343 asked fans to submit bug reports regarding any issues they encounter to help the studio improve the experience before the feature is rolled out to all players.

To access the beta test, players can navigate to the Xbox Insider Hub (or download it if needed) and select “Previews” on the left side of the screen. From there, players will see “Halo Infinite – Insider”. Joining will take players to the store page for the network test client. After the download is complete, the game will be included in the game library.

As previously announced, this is an entirely separate version of Halo Infinite, so your existing save will not carry over, nor will trial progress revert to your standard save.

While the online co-op campaign for Halo Infinite is now live for testers, there’s no word yet on when local co-op may come to the sci-fi shooter.

The Halo Infinite Network Campaign Co-op Update also includes the new Mission Replay feature, which allows players to replay missions. Here’s how to access it, as written by 343:

• Open the TacMap and navigate to the mission icon. Completed missions appear as gray diamonds.
• Use the shortcut that appears near the bottom of the screen to access the Mission Options menu.
• Select Replay Mission to select active Skulls and change the difficulty of the mission. Weapons currently in possession will also carry over to this replay.
• Complete the repeat mission to return to the current mission, or select the current mission on the TacMap to resume your last saved progress.

In other Halo news, Halo: The Master Chief Collection could add microtransactions soon.