B-17G Gamebreaker?

[The Legendary Spitfire]

I have the B-17 and use it in Dogfights and Strike and its defensive armanent and bomb load are a little excessive. 1 bombing run almost annihilates a target and it can shoot down almost anything that gets close unless rockets are used. It can even be used in CTA although it is a bit of a target if stationary on the ground.
Is it a gamebreaker? Maybe not with 50 wins to unlock but 30 or even 20 like it seemed to unlock after for me is very little for such a powerful force.