Typically, a Commando refers to a highly-trained elite specialised unit of infantry, specialising in fields such as reconnaissance, sabotage, counter-terrorism, and rapid response. Commando units usually worked solo or in small groups, are equipped with specialist equipments and armaments, and operated with principles of self-sufficiency, stealth, speed and close teamwork. Commandos are often tasked with striking behind enemy lines and tasked with risky missions to eliminate crucial enemy assets such as WMDs, vital installations and leadership, sometimes in order for the main strike force to carry out its objective safely. Commandos are also sometimes tasked with rescuing prisoners or defectors or gathering vital intelligence.