I'm gonna have to disagree with you. You're confusing gameplay style with perspective and display. A first person shooter and an over-the-shoulder third person shooter are the same thing; one just has a guy in the way of your view. It's like writing. You can write a book in first person, third person, etc., but it's the meat, not the perspective, that give that book character. Sometimes, the perspective will give that book a lot of additional charm, but for the most part, a book is identified by its content. They still have people in them. Usually have dialog. All got words! A unique novel will have the same elements as all the rest, but put them together in an enjoyable and refreshing way.