The following files you are looking for will be found in the directory "\.\Program Files\THQ\S.T.A.L.K.E.R. Now you are going to edit some more files deeper in the directory.
Using Notepad, you can simply save the file and not change the extension. $game_data$ = true| Save that ltx file as "All Files" under the same name. Open the file using Notepad.exe and search for the string: $game_data$ =false|. game folder and fairly easy to search for.
This file is located in the main S.T.A.L.K.E.R.
STALKER SHADOW OF CHERNOBYL COMPLETE COMPARISON MODS
You begin by editting the critical file "fsgame.ltx" in order for the mods to work. Unique Weapon Data-Mod Hacking FAQ/guide by (james_smith_7) (sympatico) (ca)