So, I happened to get a screenshot of this just at the end of the animation; basically my tank apparently was hit by this missed shot that didn't look like it went anywhere near the tank.
I pulled the ironman save before ending my turn and sent it as a zip in case that helps.
AutosaveIM2015-02-03_01.12.36.sav.zip
AutosaveIM2015-02-03_01.12.36.sav.zip