M coop
Used for menu selection of multiplayer game types. This value has no effect on actual gameplay and only controls what's currently selected in the multiplayer "new game" menu. The value corresponds to the different defined gametypes:
0 - Dukematch
1 - Cooperative
2 - Dukematch (no spawn)
3 - Team Dukematch
4 - Team Dukematch (no spawn)
These can be customized with the definegametype command.
See COOP.