Thanks Flossy, but I didn't give you enough info.
I have hit ground targets such as ack-ack, buildings, other vehicles, etc... using a Panzer and an Ostwind. I have values for 4 out of the 5 scoring categories, i.e., Damage/Death; Damage/Sortie; Points; and Field Captures. I have a 0% score in the Hit Percentage category. It just doesn't seem that I can be missing so much that I am lower than 1%. Very curious.
Checking some of the top ranked guys in here I noticed that many have a score in the Hit Percentage category, but many do not, leading me to believe that it must be a very specific target that the Hit Percentage category is relating to, or a very specific ground vehicle to be used. Just guessing though.
I'll try to attach a screen shot illustrating the scoring category in question. I'm not really familiar with this bulletin board stuff, let's see if this works ;-)