Halo Alpha
Halo Alpha

The result of this glitch in Halo: Reach.

The 4-Player Co-op Glitch in Halo 3 and Halo: Reach allows three or four players to play locally in Campaign or Firefight.



Halo Reach 4 Player Splitscreen Co-op Glitch Tutorial

  1. Have two players sign in and proceed to the Campaign or Firefight lobby.
  2. While in a Campaign mission or a Firefight game, press A for the amount of players that are going to join.
  3. Quit the current mission/game.
  4. Start the game again, but this time press A for the third player a second after the final beep of the countdown. For 4 players, do the same, but press A for the fourth player a split-second after the third player presses A (just before the game says "Setting Up Game").


  • In Halo 3, the game will freeze if the player comes across a Cortana HUD moment.
  • In Halo: Reach, the game will lag or freeze briefly when there is a lot being rendered at once.
  • This will also record your post-game reports if your profile is connected to Xbox Live.