If you have downloaded these files, the standard procedure for extracting and installing from this source is as follows:
: Ensure you have every part (e.g., part01, part02, etc.) in the same folder. call-duty-mw3-apun-kagames-part01-rar
: Once extracted, look for a setup.exe or install.exe file within the new folder to begin installation. System Requirements for MW3 (2011) If you have downloaded these files, the standard
: Intel Core 2 Duo E6600 or AMD Phenom X3 8750 or better Memory : 2 GB RAM If you have downloaded these files