You cannot save mid-mission. Memorize enemy patrol routes. If you die at the final hangar of Mission 5, you restart from the snowy forest entrance.
If the file is in a .zip or .rar format, use a tool like WinRAR or 7-Zip to extract the files. Project Igi Full Game Setup Download 2021
: Locate a reliable source for the Project IGI setup, such as the Internet Archive or sites like Filerox . You cannot save mid-mission