Yes, I've been running a customized Zombie Survival server for a while now and I've been needing some staff to get things rolling if or when it gets players. I've worked on everything off and on and I've tried my best to make everything optional and toggleable

GameTracker:
http://www.gametracker.com/server_info/104.219.2.250:29015/

IP:
104.219.2.250:29015

Server Name:
[WPC] 24/7 Zombie Survival | PointSaving | FastDL | wolfpackclan.com

The server is rather basic but I'll list out what it has

Pointsaving
Few custom weapons
Fully clientside features such as the ability to toggle the old hud
Enhanced weapon system
LIFE Post Processing
Ability to swap between the old and new damage indicators
Humans can use Thirdperson with C
Humans and Zombies can see there team mates using a var
Weapon tiers, no more boomsticks on Wave 2
You can sell weapons and melee weapons in the pointshop
New zombie class the Zombine that is unlocked on Wave 5
Most weapons that didn't have c_models now do
Zombie classes that did not have proper kill icons now do
GMod legs that can toggled in the Options menu
Keep updated with the latest Zombie Survival Github
and etc

The code used is fully public and issues with bugs can reported via Github
https://github.com/ForrestMarkX/wpczombiesurvival