Metal Gear Solid 4: Guns of the Patriots is a tactical espionage action game set in a futuristic battlefield. It follows an aging and exhausted Solid Snake who is equipped with OctoCamo, a high-tech suit that dynamically changes its texture to help him blend into his surroundings. This allows him to stalk his enemies like never before. The game features several characters from previous Metal Gear Solid games including Revolver Ocelot, Meryl Silverburgh, Naomi Hunter and Raiden as well as an unforgettable story depicting the desperate state of the future through the eyes of an older Solid Snake.