If the trainer causes the game to crash immediately, you may have a version mismatch. Try downloading a trainer specifically built for the "GOG version" or the specific patch version you are running.
: Always create a backup of your game folder before using trainers or modifying Download Source : Obtain trainers from reputable community sites like Experts Exchange to avoid malware. Installation Unzip the trainer files into the D:\project IGI\PC\ directory. igitrain.exe or a similar executable while the game is at the main menu. Experts Exchange Gameplay Impact project igi 1 unlimited health and ammo download for pc