 The training takes place in several locations throughout the country and takes a total of twenty weeks in which aspiring AT-operators are trained extensively in shooting, house clearing, de-escalation and an extensive specialized driving course.Marines of M-Squadron that are detached to Unit Intervention undergo the complete AT-training as well.Because of the strict psychological, social and physical selection of the operators, the intense course, frequent training, and high-quality equipment, DSI personnel are well equipped to deploy in highly challenging situations.