Close Quarters Combat. Combat system based on hand-to-hand fighting techniques for engaging enemies at close range where the use of firearms is difficult. The techniques are developed and subdivided from CQB. Allows the combatant to instantly subdue an opponent with a variety of moves including throws or choke holds while still holding a firearm. An important technique is to shave down the grip of a firearm to allow a knife to be held with the same hand.
Devised in the 1950s by The Boss and perfected together with her pupil, Naked Snake. Later, the CQC Enhancer was developed to intensify the destructive power and composition of techniques. Subsequently, Naked Snake, who became the commander of FOXHOUND and was given the title, Big Boss, spread the techniques throughout FOXHOUND. However, Solid Snake put a personal ban on the techniques. Fifty years after The Boss's death, when the CQC techniques were disclosed by the US government and became public at the beginning of the 21st century, Solid Snake also lifted his ban and started to use CQC, the "techniques learnt from a traitor."
Meanwhile, during battles with Naked Snake, Ocelot learns CQC by observation. He perfects his own personal style of CQC.