: When you launch the game, GFWL will appear. Choose to create a "Local Profile" (scroll down in the text to find this option) which does not require an internet connection or a product key. Technical Fixes for Windows 10/11

: Set the launcher to Windows 7 Compatibility Mode via the file properties.

Are you running into a when you try to launch the game, or do you need help locating the installation folder ?

Operation Flashpoint: Red River - Gameplay or technical issue