Robert Hoskin, a welder at Production Plant Barstow, Marine Depot Maintenance Command lances a pin on an LAV frame, Jan. 11. Hoskin travels across PPB performing multiple welding jobs. - Robert Hoskin, a welder at Production Plant Barstow, Marine Depot Maintenance Command lances a pin on an LAV frame, Jan. 11. Hoskin travels across PPB performing multiple welding jobs.