I just drove a M3 to another base. Sat there about 10 k away for about 20 minutes as tank battle insured below in the enemy vehicle city. My side lost so I cranked up and drove back to the spawn point. I never got shot at, I never took damage. I stopped near the spawn point turned off engine, and went to tower.
I get the message you were captured and someone shot me down. Now I don't like the captured thing but really who cares but no one was near me or shooting at me so the giving someone a kill is a bug.