Undercover agent (JCS)

Brian was one of several undercover agents planted by the United States Military's Joint Chiefs of Staff onto Camp Omega sometime prior to December 21, 1974. On December 21, 1974, he was ordered to meet with the Militaires Sans Frontières private military company, who had been hired by the JCS via cut-out to supply them with the tape. The MSF commander Big Boss infiltrated Camp Omega to meet Brian and retrieve the casette tape that contained incriminating information on the base and proof that it was a black site, specifically an interrogation. Because the risk of having a regular chat compromising them both to the enemy was too great, and because Brian technically wasn't allied with MSF, Big Boss had to utilize force on him and interrogate him to ensure their covers remained intact. Brian then explained that he didn't have the cassette tape on him due to being watched, but he did place it in a safe spot in the central control tower. He also inferred that XOF, as well as their leader, were not actually affiliated with the CIA, but interrupted himself and told Big Boss good luck, as well as to quickly knock him out to ensure their cover was intact. However, because it was placed near a surveillance camera, he was interrogated by Big Boss again, due to the possibility of being set up. He then revealed that a bald Marine had another tape, containing the full details of the plan. Both tapes were eventually recovered by Big Boss, who escaped with them. The tape contained information on XOF's leader, a mysterious man known only as "Skull Face," as well as a torture round, thus giving irrefutable proof that the base was converted into a black site. In addition, the second tape contained a full detailing of the plan to convert the base into an interrogation compound and not a refugee camp expansion. He presumably ended up silenced alongside the other undercover agents after this.

Behind the scenes
Brian is a character who first appeared in the TGS Daytime demo of Metal Gear Solid V: Ground Zeroes as a key element. His name was supplied by Hideo Kojima, due to him using a motion captured image from a Kojima Productions Los Angeles animator named Brian Robison via the Fox Engine. Kazastayloc implied that while the overall premise would be in the game, Brian himself might not be in the final version, as he was specifically planted for the demo. Ultimately, he does appear in the side op, Classified Intel Acquisition. He is voiced by Roger Rose.

Appearances

 * Metal Gear Solid V: Ground Zeroes (TGS Daytime demo)