Metal Gear Solid V: The Phantom Pain - How to Get Raiden Suit (With Showcase and Gameplay)

To get the secret Raiden Suit in Metal Gear Solid V: The Phantom Pain you must complete all story missions with an S-rank (excluding duplicate missions with Extreme, Subsistence, Total Stealth mods). Only the 38 unique missions and the prologue must be completed with S-rank and the 12 duplicates can be ignored. This will then give you the key item "Grand Master Certificate (Elite)" which lets you develop the Raiden Suit via your iDroid in Mother Base. Development costs 1,190,000 GMP, 70 Digitalis