You can find links to all supported platforms, including PlayStation 4 and Xbox One, on the official 2K Mafia website . Why Official Sources are Better: Security: No risk of viruses or "hidden" installers.
Official versions receive patches and bug fixes automatically. download-mafia-definitive-edition-apun-kagames-part2-rar
It is also available via the Epic Games Store. You can find links to all supported platforms,
Your progress is backed up so you don't lose your data. including PlayStation 4 and Xbox One
It sounds like you're trying to piece together a download for from a third-party site like Apun Ka Games.