The MOD is Zombie Master based on HL2DM
their website is
http://www.zombiemaster.org
Gore mod would fit in great with this zombie game.
I just installed and got the error message it is only compatible with CSS DODS and HL2DM.
Please make it compatible and email or pm me when you do.
Please Please Please
If you have not played try my server after you have download and installed the mod.:
206.251.72.66:27015 ! Just Some ZM Server|FastDL|89 maps|RTD|Sprint|Health Kits
Thanks for looking and I hope to thank you soon for compatibility.