When downloading large games like Call of Duty from third-party sites, files are often split into multiple "parts" (e.g., Part 1, Part 2, Part 5) to make downloading easier on slower connections.
💡 : If you get a "Checksum Error" during extraction, it usually means Part 5 (or another part) was corrupted during the download. You will need to delete that specific part and redownload it.
If you have downloaded Part 5 and the other required segments, follow these steps: