GM Defense will partner with American Rheinmetall Vehicles in a bid to provide the Army with its Common Tactical Truck, the companies announced Wednesday. The companies’ proposal will be based on an Americanized version of Rheinmetall’s HX3, a truck the company says has advanced driver assistance systems, power and mobility. The HX3 variant the companies will put forth for the Common Tactical Truck competition will feature an open systems architecture that could allow for the integration of autonomous capabilities, according...