Mobile anti air guns needs to be buffed

Like, really really needs to be buffed.

https://youtu.be/4OoyLzOPmYU

See the video above. The only reason I was able to kill that heli is because the pilot didn't understand that I was literally right next to him. It takes so much shots to take it down, it could have simply ignored me and fly away and I wouldn't be able to do anything. Same thing vs jets - I tried to shoot a fighter jet flying straight at me and couldn't kill it, there's just not enough damage.
MAA right now is completely useless vs both jets and helis. It needs to be able to deny airspace above at least one objective.

I think BF4 had good MAA balance after all the nerfs. It was harmless to enemy air when camping in the spawn, deadly up close, and could at least chase pilots away if used properly. We should have this kind of balance back.

MAA guns also needs to be buffed vs infantry. The reason is simple: making it defenseless vs ground units encourages spawn camping, no one wants that. If it could defend itself, more players would, potentially, move further away from the spawn and support the team better.

Please make MAA proper counter to air vehicles, like it's intended.