Shortly into Snake's mission, Dalton's authority is exceeded by General Wiseman, an official with the United States Department of Defense. Snake slowly learns that Wiseman's involvement is in response to a SaintLogic executive Thomas Koppelthorn, who has made demands that the United States release several prisoners and has threatened to use nuclear weapons. Wiseman proceeds to offer Snake information regarding his past in return for Snake's assistance in eliminating the present SaintLogic threat. Snake teams with Venus, Wiseman's own operative, and together they search SaintLogic for Koppelthorn. Soon after, a test is initiated, and Snake becomes aware that SaintLogic has developed a Metal Gear which Koppelthorn has taken control of. It later becomes evident that Koppelthorn is seeking revenge for an incident that occurred three years before, and among his demands are that the United States release Snake to him. General Wiseman constantly comments on a Lucinda File, which he wants Venus to obtain. As Snake and Venus search SaintLogic's research facilities, they encounter a researcher, Dr. Takiyama, and a young girl, Lucy, who proceed to join Koppelthorn's scheme. Before crossing to the building where Koppelthorn is located, Snake and Venus are met by Metal Gear Kodoque from the first Acid which was rescued before being destroyed during the events of the last game.