For the extraction to work, all parts must have the exact same name (except for the part number). You should rename "Halo.3.ODST.part03 (2).rar" to "Halo.3.ODST.part03.rar" so the software recognizes it.
If you are dealing with this file, keep these key points in mind: Halo.3.ODST.part03 (2).rar
Game files ending in .rar from unofficial sites often carry malware . Ensure you trust the source before extracting. For the extraction to work, all parts must
Do you have the (part01, part02) in the same folder? Ensure you trust the source before extracting
This usually means your browser found a file with the same name in your downloads folder and renamed the new one to avoid overwriting it. Safety and Troubleshooting ⚠️
Opening Part 1 with a tool like WinRAR or 7-Zip will automatically pull data from Part 3 to reconstruct the full game.
If extraction fails, Part 3 might be corrupted. Delete the "(2)" version and try a fresh download if the archive says "CRC failed." Why ODST Still Matters