World War III: Team Yankee - M163 VADS or M901 ITV Platoon (TUBX02)Includes four plastic M163 VADS M901 ITV vehicles, Decal Sheet and Crew The M163 Vulcan Air Defense System (VADS) is a self propelled anti aircraft gun (SPAAG) that was used by the United States Army. The M168 gun is a variant of the General Dynamics 20 mm M61 Vulcan rotary cannon. The M901 ITV (Improved TOW Vehicle) is a United States Army armored vehicle introduced into service in 1979, and designed to carry a dual M220 TOW launcher.