Metal Gear Solid 4: Guns of the Patriots (2008)

Year 2014. After the events narrated in Metal Gear Solid 2: Sons of Liberty, the world is now run by a huge computer system called Sons of the Patriots. All the soldiers in the world have nanomachines in their bodies that manage their emotions, their gestures and provide them with the appropriate training and information. Most of them are also enrolled not in regular armies but in private deployments, called PMCs (Private Military Companies). Solid Snake, aged rapidly, is in the Middle East on behalf of retired Colonel Roy Campbell, officially as a UN inspector for the control of the situation. His real mission is to find and eliminate Revolver Ocelot who, after the arm transplant he underwent years before, now seems totally dominated by the personality of Liquid Snake, so much so that he is now called "Liquid Ocelot". (This documentary takes a look at the series and the long dark road that has led to this final chapter.)