Gray Fox Cyborg Ninja Suit - Metal Gear Solid V: The Phantom Pain

Video on the Cyborg Ninja Suit for Gray Fox from Metal Gear Solid 1. To obtain, you must beat the Deja Vu mission in Ground Zeroes on hard and then transfer the save data to the Phantom Pain. After that you must beat Main Mission 46 in the story in order to be unlocked for development.