XOF

XOF was the army for Cipher, the main antagonist of the Metal Gear Solid V installments Ground Zeroes and The Phantom Pain. It was commanded by Skull Face.

XOF began as a covert counterpart to FOX in the 1960s, but from 1975 to 1984, it defected to Cipher, which later became The Patriots. It was rivals with Militaires Sans Frontières and its successor Diamond Dogs.

Equipment

 * Typical grey and black special operations gear
 * Sz.-336 SMG

Other units

 * The Parasite Unit