Medal of Honor is a legendary first-person shooter series. Given the "Part 2" naming convention, this is likely the 2010 reboot or the 2012 Warfighter title, which were large enough to require multi-part downloads on many file-sharing sites.
Be very cautious when downloading .rar files from third-party sites. These files are common vectors for malware. Always scan the extracted folder with updated antivirus software before running any .exe files. Common Issues
Right-click on Part 1 and select "Extract Here." The software will automatically pull data from Part 2 and the others to recreate the full game folder.
You cannot extract Part 2 by itself. You must have Medal.of.Honor.part1.rar and any subsequent parts in the same directory.
.rar is a compressed file format. You will need a program like WinRAR or 7-Zip to open it. How to use it