For the most current, virus-scanned "Fear 3 Save Game 100" file, refer to the pinned comment below or visit Nexus Mods (file ID 4172). Always scan with Malwarebytes before unzipping.
A "100% Save Game" for F.E.A.R. 3 typically refers to a completed User.profile file that unlocks all progress-based features and content. Steam Community Key "100%" Features Unlocked Fear 3 Save Game 100