CMFB "Claymores" campaign, Mission 3.
During setup, a Jeep is seen as "Dismounted" when it clearly has a 2-man FO passengers in the front seats (no other passengers or driver). But, also there is no ability to "dismount" or "bail out". the FO One can only dismount the FO by giving it a movement order into the setup zone.
One can mount an inf unit into the empty Jeep and ACQUIRE ammo, But, one has to use a movement order (even though it is the only unit in the vehicle) to enable the unit to dismount. ie: the Jeep cannot be ordered to move.
Picture wouldn't post unfortunately, but game file available.