It needs a buff against aerial targets. The lock on takes too long, the rockets aren't fast enough and the damage is pretty weak. ESF's can simply avoid a HA AA's by flying low to break the lock, making it a 1000 cert donkey.
All the faction AA rockets are the same. Just pick the right targets at the right time, i.e. flying towards you or across your front and you'll be fine. Firing a rocket at a retreating ESF is a waste of a rocket as they'll easily outrun it.
I've noticed it targets faster if you keep the cross hairs on the aircraft, and not trailing the with the red box blinking. It's most effective when you see a dog fight and helps out your pilot buddy. I like to wait for a target thats almost dead,then take a shot. You get the destroy XP lol
