L4D Game type {versus|survival|coop}

[Liberator]

The DLC introduced a new CVAR for determining the game type and retired the director commands for the same.

New variable is "mp_gamemode" and can be either 'survival', 'coop' or 'versus'.

Once you set the server to 'survival' mode you will have to restart the map for it to pick up the correct spawn locations, this is why people have been spawning behind the fence on lighthouse.