Zombie Plague 5.0 with update 1 is a unofficial version edited in 5.0,improved and optimized code.
Two modes are added like Predator(Alien), Evil Within.
The new nightvision, flashlight, npc class system, random weather and map lighting, random fog whith config file.
New APIs and Natives...
Mods: Counter-Strike 1.6
AMXX: Version 1.9 or later
Download all files and compile .sma files from github to your server's mod directory (cstrike) and make sure to keep folder structure.