I honestly do not know what I was thinking. TBH, I was looking for my magnifying glass, because I couldn't see the images properly - I actually thought the icon on the Guards units was the 82nd Airborne...but that's not the whole case because of what I said - tanks = guards and not airborne - I could make out the Screaming Eagle - I could see the para unit icon on the green counters.
I just got mixed up with my units when I was looking is all.
But I shall report.
HOWEVER - there is no arrow from the counter in D so I wasn't even counting that as it's not clear it's taking part (remember earlier in the rules there's no need for a unit to attack when it's next to an enemy unit)...so just saying