Zombie riot is a mod that allows you to change your counter strike source dedicated server into a co-op zombie hunting, like Killing Floor. You can configure the zombie waves, the number they come in, zombie types and skins, health...
This is the first map pack I've made for you guys to use (can be used to normal servers as well). CS and DE types
A boss monster pack, you can use these models to bosses or regular zombies if you want to.
This is the umbrela counter-terrorists skin pack for CS Source
This is a selection of 2 skin packs created for you to replace the old cs source skins if you want.
This is the Zombie Skin Pack which you can use to add different zombie skins to your server.
Zombie riot mod(plugin) for counter-strike source dedicated servers.
Hacks Extension plugin for source mod, required for zombie riot to work.