Commanding Officers Train At Motoring School -- A demonstration with a Bren gun carrier shows how it can safely be taken across wide gaps. Officers commanding mechanised units are now required to Have a complete Knowledge of all the vehicles under their jurisdiction. At the Western Command School of Motoring and Maintenance demonstrations are given with Lorries, motor-cycles and Bren gun carriers to illustrate the strength of construction and adaptability when driven correctly. August 22, 1942. (Photo by Fox Photos).