A new Beta is available for the cooperative multiplayer modification for DOOM 3. Last Man Standing.

Last Man Standing Coop Mod is a Doom 3 multiplayer modification that aims to bring back the feel of the older Dooms. The gameplay is survival in nature where you face swarms of attacking monsters, all to heavy metal soundtracks. You can compete against friends in KillFest maps, and also through our only live once hardcore mode. A word of caution, our gameplay is extremely thrilling.

Thanks Bluesnews