Play the Single-Player Story with the HaZardModding Coop Mod Co-Operatively. Up to 8 players supported via LAN or Internet. 3 different Classes with specific abilities, to support the Team.
This is how it started. This is the very first concept paper of the HZM Coop Mod, this was drawn in December 2005. The notes contain spawn-locations, function notes and a drawing of the swamp-shack which is the central building of the map secret1.
It's interesting to see how it all started.
It's been a long time Chris.