Mentoring the Afghan National Army personnel of the 4th Brigade, 205th Hero Corps was an important part of the 5 RAR battle group's mission. Consequently, the sub-units did not deploy as doctrinal rifle companies but were instead task-organised as Mentoring Combat Teams each organized with four Operational Mentoring and Liaison Teams (OMLT) and supported by cavalry, engineer and other specialists. Each OMLT was led by an officer (either a Lieutenant or a Captain) and a senior soldier (a Sergeant or Warrant Officer Class Two), and comprised mentoring staff (generally but not always infantry), a small infantry 'force protection element', an engineer search team, a Joint Fires Team, and a medic, who were responsible for embedding with and mentoring an Afghan infantry company within their Tactical Area of Responsibility. Whilst the 4th Brigade Headquarters were located within the Multi-National Base at Tarin Kowt, the majority of the 4th Brigade's troops operated from patrol bases and combat outposts throughout the province. This meant that each combat team was assigned a dedicated area of operations in which to work with their partnered indigenous force: CT-B operated in the Miribad region, CT-C in Deh Rawood region, CT-D in the Chora-Baluchi region, and Support Squadron who operated throughout the entire area of operations.