|This article is about a non-canonical topic in the Metal Gear series.|
Black Chamber was a special forces group founded after the Outer Heaven Uprising to act as a sort of "shadow FOXHOUND." After Solid Snake's success with Operation Intrude N313, FOXHOUND became too well known to the general populace and was therefore under closer surveillance by rival intelligence bodies. Black Chamber was founded to perform operations that FOXHOUND would do normally, but they weren't under surveillance like FOXHOUND was at the time. Several of their activities that they performed included assassinations of anti-American foreign leaders, removal of domestic civilians engaged in anti-establishment activities, interfering in various civil wars and strifes for America's behalf, and other black operations.
Two years before the Galuade Incident, Black Chamber was ordered to retrieve a U.S. built Metal Gear, which had been seized by South American terrorists at the time. Black Chamber succeeded in destroying this Metal Gear, but the United States Government feared that Metal Gear's construction and Black Chamber's existence would be revealed to the public, so the unit was attacked by FOXHOUND (under Colonel Campbell's command, acting under false information) shortly after their return home.
Only five members survived the attack. They vowed revenge against Solid Snake, Colonel Campbell and "Anonymous," the man who had ordered their termination. Four of them became mercenaries, and the remaining surviving member doctored his name, documentation, and underwent plastic surgery to gain a new life as the Director of Operations at the CIA's Africa Desk while secretly maintaining contact with his comrades. They would later resurfaced as terrorists during the Galuade Incident, in which the remaining five members were killed.
Behind the scenes
Black Chamber is the main terrorist threat in the non-canon game Metal Gear: Ghost Babel. Some traits of the characters, including backstory and harboring a hatred for Snake for his perceived role in their tragic background (more specifically, the near-total destruction of their unit), were later reused for Dead Cell in Metal Gear Solid 2: Sons of Liberty. Concept art for the members and other characters in Ghost Babel were also included in the artbook The Art of Metal Gear Solid 2.