About Us

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The 4th Infantry Brigade Military Simulation unit often abbreviated as 4IB was founded in November 2015 consisting of members from various backgrounds and experiences including members who have or are currently in active military service. This gives 4IB a solid foundation to accurately portray the real 4th Infantry Brigade within the limitations that ArmA 3 presents as collectively, the unit has over 100 years of military experience across numerous countries.

Within the first year, 4IB became the largest British Military Simulation unit in the ArmA 3 community where it remains to this date.

Mission Statement

At 4IB, our aim is to bring a professional and a fun experience to all of our members whilst continually finding the perfect balance between realism and the limitations that ArmA 3 provides. When a member of 4IB attends an event, Official or Unofficial, they do so with the intention that their attendance is not only just for their enjoyment but to enhance the experience for everyone else.

Unit Composition

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Alma Company, 2 YORKS, is a Rifle Company consisting of a Company HQ, 2 Rifle Platoons and a Machine Gun Platoon. Rifle Platoons have their own HQ who are in command of the 3 Infantry Sections within the Platoon with Machine Gun Platoon providing fire support to the 2 Rifle Platoons with the L7A2 general purpose machine gun. They are experts in dismounted close combat and rigorously trained in light mechanised roles, to fight by foot or by vehicle. They are also trained in high-intensity, light-role warfighting in a conventional war, counterinsurgency, security sector reform, peacekeeping or supporting civil authorities and can, when required to work closely with Quebec Company and Detachments.

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Quebec Company, 2 YORKS, is a Fires Company consisting of a Company HQ, Mortar Platoon, Recce Platoon, Snipers Platoon and Anti-Tank Weapons Platoon. Each Platoon has its heir own HQ who are in command of the Fire Sections within the Platoon. They are experts in providing fire support to rifle companies in a conventional war, counterinsurgency, security sector reform, peacekeeping or supporting civil authorities.

Mortar Platoon provides indirect fire support with the L16 81mm mortar at Platoon level to allow for softening of targets prior to infantry assaults.

Sniper Platoon provides intelligence, surveillance, target acquisition and reconnaissance for the battlegroup, alongside eliminating enemy command and control targetry.

Anti-Tank Weapons Platoon provides protective anti tank screens prior to Infantry troops movement in the battlespace with the Javelin anti tank missile system, destroying targets from infantry transport to main battle tanks.

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Burma Company, 1 YORKS, is an Armoured Infantry Company consisting of a Company HQ, Mechanized Infantry Platoon and CQMS. The Mechanized Infantry Platoon consists of a Platoon HQ and 3 Infantry Sections utilizing the FV510 Warrior and the FV430 Bulldog. They are experts in providing highly manoeuvrable, fast moving firepower in a conventional war, counterinsurgency, security sector reform, peacekeeping or supporting civil authorities.

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Corunna Company, 4 YORKS, is an Army Reserve infantry Company and is also part of 4th Infantry Brigade and HQ North East. It provides individuals and groups to support the Regular Army and in particular our other Yorkshire Regiment battalion during operations. Members of Corunna Company, 4 YORKS within the 4th Infantry Brigade Arma 3 Unit consist of members whose real lives dictate that they cannot regularly attend sessions, however when they do have some spare time on their hands enjoy filling in the ORBAT and assisting their Alma and Quebec Company counterparts, both in Training and Operations.

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3 Medical Regiment currently provides a Section of trained Combat Medical Technicians to treat any casualties whilst on Operations. Using the Advanced ACE Medical System, our Medics will deploy forward to the frontline as a light role medical regiment to retrieve and treat casualties. Depending on the seriousness of the casualty, the Medics will stay with them whilst they are extracted via Helicopter and taken back to a Forward Operating Base where they can be fully stabilised and the relevant treatment given before enabling that person to be brought back into the battle.

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12 Military Intelligence are the Zeus operators that provide an immersive experience for the rest of the unit. They closely work alongside the Brigade J-Offices to make sure that both deployment and training runs smoothly. 12 Military Intelligence is the backbone for operational immersion and provides every member day-to-day enjoyment.

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No. 18 Squadron, Royal Air Force, fly and crew our Chinook HC4 aircraft. They fly many missions in support of ground forces that include but are not limited to; the transportation of troops, medical evacuations, transporting battle casualty replacements, heavy lifting and resupply.

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3 Regiment, No. 662 Squadron AAC, Pilots and Guns the AH-64 Apache. The Apache is a four-blade attack helicopter, capable of Close Air Support. In addition to the 30mm M230E1 Chain Gun, the Apache carries an array of weapons on its stub-wing pylons, typically a mixture of AGM-114 Hellfire anti-tank missiles, and Hydra 70 general-purpose unguided rocket. Besides its close air support capability, the Apache is capable of Intelligence, Surveillance, Target Acquisition and Reconnaissance taskings.

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No. 34 Squadron, Royal Air Force Regiment, provides joint terminal attack control to Alma and Quebec Company on training and operations. No. 34 Squadron allows for the ease of medical evacuations and transport of troops, logistics and ammunition through the establishment of Helicopter Landing Sites via radio communications.


Although we are an ArmA 3 MilSim unit, we share the same core values as the British Army. In the eyes of our members, these values should not just ring true in a work, or in our case a play environment, but in all walks of life.

Listed below are the core values of the British Army that we try to uphold within the 4IB:


"Soldiering has always demanded physical courage, to knowingly go into harm’s way on behalf of the nation. Physical courage is required to risk life, take life, show restraint, endure hardships and focus on the task; soldiers depend on each other for it. Equally important is moral courage, the strength and confidence to do what is right, even when it may be unpopular and to insist on maintaining the highest standards of behaviour and decency. This earns respect and fosters trust."


"Discipline is the primary antidote to fear and maintains operational effectiveness: it is supported by team loyalty, trust and professionalism. Discipline instils self-confidence and self-control. Good discipline means soldiers will do the right thing even under the most difficult of circumstances."

Respect for Others

"Respect for others, both those inside and outside of our organisation is not only a legal obligation, it is a fundamental principle of the freedom that our society enjoys. Teams that embrace diversity, and value each individual for their contribution and viewpoint are always stronger for it. We must treat everyone we encounter, as we would wish to be treated"


"Integrity means being truthful and honest, which develops trust amongst individuals and welds them into robust and effective teams. Integrity is therefore critical to soldiering, as soldiers must have complete trust in one and other as their lives might ultimately depend on it. Trust in the Chain of Command is also key, and demands integrity from those in positions of authority."


"Loyalty binds all ranks of the Army together, creating cohesive teams that can achieve far more than the sum of their parts. The Nation, Army and Chain of Command rely on the continuing allegiance, commitment and support of all who serve. But, loyalty is not blind and must operate within the parameters of the other Values; it should not stop appropriate action to prevent transgressions by subordinates, peers or seniors."

Selfless Commitment

"Selfless commitment is a foundation of military service, soldiers must be prepared to serve where and when required and always give their best. The needs of the mission and the team come before personal interests. Ultimately, soldiers may be required to give their lives for their country, that is true selfless commitment."