Protagonist or Antagonist? I can’t decide.
As I understand it, Protagonist is the one trying to achieve something. The Antagonist is the one trying to hinder him. This makes a lot of "bad guys" be Protagonists. In Transformers, the Decepticons would often be the Protagonists. This makes James Bond an Antagonist.
It's all in how you position the goal. If you say the goal is to Stop the Decepticons from doing "fill in evil deed here", then the protagonists are the ones pursuing that goal, and the Decepticons ones trying to prevent or avoid that.
Keep in mind that the Story Outcome is tied to the Story Goal. This is a good indicator as to how the author wants the audience to understand who the protagonist and antagonist are.