People argue over whether it was Escape from Tarkov or The Division, but Phantom Pain is the earliest example of this gameplay loop.

1. Home base with upgrades you expand and improve your base.
2. Set your loadout before going on an extraction mission into the zone.
3. Extraction zone is a large open world map with memorable locations used for multiple incursions and different objective missions.
4. Exits from the map are set locations.
5. Gameplay loop is to get in, do a [thing], and get out.

MGS: Phantom Pain was the first extraction shooter. The only thing modern extraction shooters do that it does not is that they put multiple human players on the map simultaneously for a mixed pvpve environment whereas MGS was purely PVE.