I think it's a little too easy to shoot down helos in BF4, though I'm not an avid helo pilot so I don't mind. RPGs don't have guidance systems, they are point and shoot. They shouldn't be able to home in or lock on to targets. I'd be surprised if they didn't remove that from the final game. And the tank damage points are useful too, but I'd think most servers would turn that off, or at least the hardcore ones.