The Definitive Edition ensures you have access to the full experience from the start, though DLC missions typically unlock after the first "sit down" meeting with your lieutenants in the main story.
:
In the vanilla game, the DLC weapons sometimes disappear. In the repack, this is usually fixed, but if your golden guns vanish, simply fast travel to Sammy's Bar and back. The repack community patches usually include a .bat file called "DLC Enabler." Mafia III Definitive Edition - all DLC- Repack ...
The keyword demands "all DLC." There are three major story expansions, plus several smaller content packs. Here is the breakdown of what you get in the repack. The Definitive Edition ensures you have access to