The Air Force versions use a combination of tracked and wheeled vehicle. The company was recognized by NDIA's Tactical Wheeled Vehicle Division. Each non-articulated character came with a wheeled vehicle. JTF2 uses the High Mobility Multipurpose Wheeled Vehicle (HMMWV) special operations version. "Sojourner" is the first wheeled vehicle to rove another planet. In January 2014, Johnson enlisted in the US Army as a wheeled vehicle mechanic (91B).