Thanks for reporting a bug.
Your suggestion about hexagon shading is very good. Unfortunately data exported from commander's report doesn't include units' CV. Among others, available are morale, experience, fatigue, %TOE, supply status, ammo, number of men, guns, AFV. It is possible to determine approximate CV with these but would require a bit effort. I don't remember if there is CV formula given in game manual but I will check it.
I'm happy to hear that :)