To get literally everything in v1.15 without cheating, you must master the rotating FOB events. There are 8 events total, repeating every 2 weeks.
This version typically includes all cosmetic and gameplay expansions released over the game's lifecycle: Included Items / Content Metal Gear Solid V The Phantom Pain v1.15 All...
Metal Gear Solid V: The Phantom Pain v1.15 is a minor maintenance update primarily focused on improving game performance and addressing technical bugs. Released as part of the ongoing post-launch support, this version is frequently bundled in modern community repacks that include all previously released downloadable content (DLC). Title: The Final Update: Analyzing "Metal Gear Solid