Eastern Bloc leader (Snatcher project)

An Eastern Bloc leader was rumored to have used Big Boss as a guinea pig for Drago Pettrovich Madnar's Snatcher project. Eager to get his hands on the renowned mercenary leader, he supposedly provided Big Boss with cybernetic body parts to compensate for the injuries he received during the 1995 Outer Heaven Uprising. These rumors were relayed to Solid Snake during the 1999 Zanzibar Land Disturbance by George Kasler, who referred to the leader as a despot.

Behind the scenes
The Eastern Bloc leader was only mentioned in an optional radio conversation in Metal Gear 2: Solid Snake, regarding Big Boss's survival of Outer Heaven. It is unclear whether he did indeed resuscitate Big Boss, or even if he actually existed, although the Metal Gear Solid 4 Database does mention the project in question.