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Metal Gear Solid 5 Key Items locations: How to unlock all costumes and suits

How to trigger every Key Item in Phantom Pain, so you can unlock new developments and upgrades, and gain some new cosmetic items too.

If you reach certain milestones in the game, or finish off particularly tricky missions, you'll receive a special Key Item as a reward. These allow you to develop new items of equipment and cosmetic items - here's how to unlock every one of them.

Metal Gear Solid 5 Key Items locations: How to unlock all costumes and suits

KeyNotesCriteria
Children's RewardUnlocks Water PistolFinish Mission 18
First Aid ManualUnlocks Tactial Fulton D-DogFinish Mission 18 and search Masa Village
Master Certificate - MarkingCan tell the different between enemies and decoysMark 500 enemies
Master Certificate - FultonUnlocks Grade 3 Fulton upgradeExtract 500 enemies
Grand Master Certificate - FultonUnlocks F-BallistaExtract 1,000 enemies
Master Certificate - BoxUnlocks C. Box (WR)Take all Invoices in Africa or Afghanistaion
Grand Master Certificate - BoxUnlocks C. Box (SMK)Take all Invoices in Africa AND Afghanistan
Conch ShellUnlocks Petrol Bomb and Fulton upgradeFinish Side Op 113
Skulls MacheteUnlocks Task-Arm SMFinish Mission 29
Strangelove's MementoUnlocks BandanaFinish Side Op 143
Man on Fire - CorpseUnlocks FuricornFinish Side Op 144
Quiet's Examination ReportUnlocks Gray XOF uniformFinish Mission 40 or watch Quiet's interrogation cutscene
HandkerchiefUnlocks Sniper Wolf uniformFinish Mission 40
Emmerich's Research NotesUnlocks Stealth CamoWatch the exiling of Emmerch cutscene
The Codename: Big BossUnlocks Leather Jacket uniformFinish the Phantom Pain's secret mission
Master Certificate - StandardUnlocks Cyborg Ninja uniformFinish every mission (except hardest difficulty)
Grand Master Certificate - StandardUnlocks Raiden uniformFinish every mission (except hardest difficulty) - S Rank
Master Certificate - EliteUnlocks Naked (Silver) and Bionic Arm uniformFinish all missions on Extreme, Subsistence and Total Stealth
Grand Master Certificate - EliteUnlocks Naked (Gold) uniformFinish all missions on Extreme, Subsistence and Total Stealth - S Rank
Star of BethlehemUnlocks Infinity Bandana uniformFinish the Phantom Pain's secret mission

- You can find the rest of our Metal Gear Solid 5 walkthrough from the first page of this article.

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John Bedford

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John is a freelance writer based in West Sussex.

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