Origin
Russia
The Sorrow was the "Spirit Medium Soldier" of the Cobra Unit. Although he had no actual unique combat abilities like the other Cobras, The Sorrow was gifted with the powers of a medium. He was able to summon the dead and assume their combat abilities by bringing their spirits into himself. Communicating with dead soldiers also gave him several advantages during a battle, such as learning of enemy positions. Like the other Cobras, his codename reflected the emotion he brought to the battlefield.
Metal Gear
Metal Gear (Japanese: メタルギア, Hepburn: Metaru Gia) is a series of action-adventure stealth video games created by Hideo Kojima and developed and published by Konami. The first game, Metal Gear, was released in 1987 for MSX home computers. The player often takes control of a special forces operative (usually Solid Snake or Big Boss), who is assigned the task of finding the titular superweapon "Metal Gear", a bipedal walking tank with the ability to launch nuclear weapons. Source: Wikipedia