How do you mod a stalker call of Chernobyl?

You need to install CoP on a separate folder to add mod to Call of Chernobyl. If you want to make sure everything is up to date, run CoCDater once. If you want to reset your installation, you should make backups of the 'bin' and 'game data' folders. If you want to install something on another folder, you need to extract it.