Its a tricky situation with the AA, I run a tank most of the time, but on occasion I will hop in the AA, you can blast everything out of the sky, but miss just one chopper or jet while you are out repairing and shit hits the fan. If you have no tank support from your team and are constantly on the run, its tough to keep the skies clear. I've seen complaints about the AA guy when hes 60-0. You just cant win in the AA. I see "where the fuck is our AA" more than anything, and usually when I see it, the AA is just coming out of spawn because he died. Well.. Where the fuck is his tank support? LOL
People cant get better at the AA if you don't let them learn. We were all beginners at one point. We tend to forget that. AA's that park under the bridge or at the ends of the map are worthless however.