In 2014, the world is in chaos, the “war economy” plunging the world into never-ending battle. This fuels the need for private military companies, the five largest of which are owned by a single mother company, Outer Heaven, with Liquid Ocelot at the helm. Liquid Ocelot, a fusion of the consciousness of Liquid Snake and the body of Revolver Ocelot, is once again set on world domination. Solid Snake, now also referred to as Old Snake due to his advanced accelerated aging, is dispatched to assassinate Liquid Ocelot as a personal favor to Roy Campbell

The game takes place after the events of Metal Gear Solid 2, and players will once again assume the role of top-secret agent Solid Snake. Additionally, characters from throughout the Metal Gear Solid series will make cameo appearances. MGS4 is a leading product for “PS3” and will herald the beginning of a new gaming era for the Metal Gear Solid series thanks to the inclusion of online play capabilities in the game.