Ok something i just learned the hard way

Ok so this has probably been talked about before and if so I missed it, but i took an AI city and all I had to do was hold it until back up arrived and i would have been one step away from his cap. However.......WHEN THE HELL COULD AA TAKE A CITY!!!!!!

I was bombing him left and right and lol at his poor atempt to retake his city he was sending in one unit doing a bit of damage and then i was killing it, all the time moving in AA. I was thinking to my self that's not going to help him i have no aircraft, how stupid then BAM!!!!!! 5 of them hit my (his) what ever city and took it, lucky for me i just said screw it and claimed the dipo win, but this is wrong. In a real war AA would never bomb a city that i know of. OH well lesson learned and now i know i been wasting my AA i have just been using them as land marks to stop aircraft i build them set them and let them do there job, silly me.///

I don't even....? I really can not figure out what has happened, but apparently some kind of aircraft was involved.

naw my rant was based on the fact that AA act like infantry and not ranged

Ah... yeah their pretty good allround combat units actually.