Did someone actually say helicopters are over-powered? on the server I was on nobody wanted to fly anymore, thats how many people had stingers, hell lock on time is so short most pilots insta hit flares now, which is of course easily abusable by a stinger users ;p
And if 2 people have stingers and are not brain-dead 1 fires instantly after lock on and the other waits for the flares and then shoots. You can take down any helicopter with that tactic in a single strike.
And if helicopters really bother you.. soflam + javelin still works