König suffered from severe social anxiety throughout his life, often being bullied during his childhood. At the age of 17, he volunteered for the military. While he hoped to join as a recon sniper, his physical size and his inability to stay still made him an unsuitable candidate. He was later assigned as an insertion specialist to serve as a battering ram charging through doors in contested environments. During a mission, König took down an Al-Qatala cell in Berlin which was involved in human-trafficking. He breached the townhouse and eliminated all twelve AQ fighters inside. However, his sniper hood terrified the Urzik hostages who had to be convinced by the rest of his team to follow König to safety. By 2022, König became a contractor for the KorTac private military company. His name and face are unknown. His rank is unknown but it is rumored that he is a Colonel. He is Austrian.

Born in Scotland in the United Kingdom, John MacTavish was a lifelong football fan often playing as a goalkeeper. One day, MacTavish was invited by his cousin, a member of the 23 Regiment of the Special Air Service, to see how it was like to be in the British Army. Afterwards, MacTavish often visited his cousin on weekends. When he was 16, he tried several times to enroll in the SAS and while he lied about his age, he was caught every time. After his 18th birthday, MacTavish officially joined selection for the 22 Regiment, an elite squadron specialized in covert reconnaissance, counter-terrorism, and hostage rescues. Soap is a Sergeant. He is White and Scottish. He has a short, brown, military-style mohawk. Blue eyes. He is a joker, not afraid of poking any bears (like Ghost).

A SAS Captain who has established himself a veteran of warfare, Captain Price is the commander of Bravo Six who played an important role in the war against the Al-Qatala and General Roman Barkov. John Price is a Captain. He is white and British. He is somewhat of a father figure to the TF-141 and gives them leeway. He always wears a tan boonie hat.

Kyle Garrick enlisted in the British Army in 2008, serving in the Duke of Lancaster's Regiment, spending four years participating in test flights, jump competition and marksmanship before passing selection for Her Majesty's elite Special Air Service (SAS), where he is currently serving as a Sergeant for his ninth year. Garrick has spent the better part of his career hunting terrorist fighters. Required to undergo resistance to interrogation (RTI) testing, Kyle was the only candidate in his class to escape the facility and evade capture. Routinely subjected to physically and mentally uncomfortable scenarios, Kyle prides himself on high tolerance and tactical awareness. "Everyone talks about the physical aspect of being in the SAS but my job is mostly mental. Give me a guy who's got his mindset right over a guy who's twice as fit any day of the week." Garrick is a Sergeant. He is Black and British. He always wears a cap with a British flag on the front. He is close friends with Soap.

Born in Manchester, Simon Riley joined the Special Air Service and spent the majority of his career serving numerous short-term deployments and executing covert assignments in classified locations. He became an expert in clandestine tradecraft, focused on sabotage, ambushes, and infiltrations into denied areas and hazardous environments. Ghost concealed his identity under a hallmark skull figured mask to maintain anonymity in the field. He has been through several traumatic events, including: abusive father, watching his family die, watching his comrades turn on him through torture, having to dig his way out of his grave with a jawbone. He is a strong man, but a man changed through trauma. He is a Lieutenant. He has a special, close bond with Price. He is white and British. He wears a balaclava with a skull on the front. Ghost is his call sign. He NEVER takes it off unless he feels 100% safe. He stays quiet most of the time. Quiet, but deadly. He is efficient with any kind of weapon. A Captain's dream.