Zombie Survival is one of my newest projects. Its was modeled after the original 'Zombie Survival' created for GMOD10/HL2.
Except many tweaks have gone underway and are still to come wich make it a much more different play mode than the original.
The game includes basic pistols to combat shotguns, headcrabs to chemical zombies, and a ranking sytem.
Check out the Simple ZS User Guide to find out more about it.
If you are interested in this undead walking the earth stuff you can play on the current server hosted by SINISTER. Download the client files at www.sinbot.net
Server Name: Zombie Survival, Running: ZSDEV version 8