2-271. Commanders rarely have enough time or resources to train all tasks. Each commander determines what essential supporting collective tasks must be trained to attain the required levels of objective training requirements for mission-essential task list (METL) proficiency. The concept of mission essential tasks provides commanders a process to provide their units a battle focus. Each mission-essential task aligns with collective tasks that support it. All company and higher units have a METL. Units with a table of organization and equipment have an approved and standardized METL based on the type of unit and focused on large-scale combat operations. Standard METLs can be found on the Army Training Network, Digital Training Management System, and Combined Arms Training Strategies websites.