In November 2006 Jim Crone and Sergeant Major Pete Jackson , senior tunnel guide with the Royal Gibraltar Regiment , met possibly the only member of Operation Tracer still alive when they travelled to meet Dr. W. A. Bruce Cooper at his home in England . Cooper , 92 at the time , provided an opportunity to shed light on the operation with his direct involvement in the mission as a Surgeon @-@ Lieutenant in the Royal Navy Volunteer Reserve ( RNVR ) . He recalled stories about his colleagues , his training , and his feelings about the task .