To successfully inject a 50% complete save file into your Far Cry 2 directory, follow these steps:

Safety Warning: Always scan downloaded .sav files with updated antivirus software before placing them into your system directories. How to Install the Save File

C:\Users\[Your Username]\Documents\My Games\Far Cry 2\Saved Games

This usually happens due to a mismatch in the or game version (v1.01 vs v1.03).

Assuming you find a legitimate (or community-trusted) file matching this description, here is exactly what you will load into: