There is more flinch in the Attack Helicopter while being shot at than when you're sniping. That is how unbalanced this game is.
When you are flying the attack helicopter and you're being shot at by guns, you receive literally more flinch than if you were sniping and being shot at by the same guns. I just noticed this today, and thought I would share so you have an idea of just how poorly balanced this game is in it's current state.