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Metal Gear Solid 4: Guns of the Patriots - Gameplay Walkthrough Part 39 - Screaming Mantis Boss - YouTube
HowLongToBeat on Twitter: "It takes on average 19.5 hours to beat Metal Gear Solid 4: Guns of the Patriots (30.5 hours for completionists). https://t.co/l8YZVcPhMQ https://t.co/1BKgf2ORO9" / Twitter
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