

Once you've invited everyone, simply select the desired mission and difficulty, and you'll be well on your way to playing Halo: The Master Chief Collection in co-op. On Steam, you can invite others by right-clicking on their name and selecting the Invite to Lobby option.

In order to do so, the designated host needs to first invite the other players to their game sessions. Nevertheless, this still gives players ways of playing the Halo: Reach, Halo: Combat Evolved Anniversary and Halo 2: Anniversary campaigns in co-op alongside a friend or as part of an entire squad of four. Sadly, splitscreen wasn't included with the launch version of Halo: Reach on PC and hasn't been added so far. On PC, Halo: The Master Chief Collection features both online co-op and LAN co-op that supports up to four players.
