Action MOB is a term used to describe a group of people who take part in criminal activities such as heists, riots, and other forms of civil unrest. The term is derived from the words 'ACTION' and 'MOB, ' which refer to a large group of people taking part in a collective ACTION. Heists are criminal acts involving the theft of property, usually involving a group of people working together. RIOT is a form of civil unrest involving a large group of people, often resulting in destruction of property and violence. A rioter is an individual who takes part in a RIOT.