3-1. A mission essential task is a collective task in which an organization has to be proficient to accomplish an appropriate portion of its wartime operational mission. Army organizations, whether they are AC or RC, Modification Table of Organization and Equipment (MTOE) or Table of Distribution and Allowances (TDA), cannot achieve and sustain proficiency on every possible training task. The commander must identify those tasks that are essential to accomplishing the organization's wartime operational mission. Battle-focused METL identifies those tasks that are essential to the accomplishment of the unit’s wartime operational mission and provides the foundation for the unit’s training program.