This applies to the unofficial PC port/mod (not the PSP/PS2 original).

Open > System and Security > System > Advanced system settings .

Open the and search for "View advanced system settings" .

: Ensure you have the latest DirectX and Visual C++ Redistributables installed, as missing or outdated files frequently cause "Application Load Errors" or fatal crashes. Mission-Specific Fixes

If you tell me the in the error box or when it crashes (e.g., at startup or during a mission), I can give you a more targeted fix.