To actually play the game, having just "Part 5" isn't enough. Here is the standard process for these types of files:
.rar files are used to shrink large games into smaller chunks for easier uploading and downloading. How to use it download-medal-honor-airborne-apun-kagames-part5-rar
If Part 5 is corrupted, the extraction will fail with a "CRC Error." If that happens, you usually have to re-download that specific part. A Few "Pro-Tips" for Classic Games: To actually play the game, having just "Part 5" isn't enough