Yes it is. It's a FPS with RPG (Roll-Playing Game) elements.
I recently read a comment about Alpha Protocol which make sense in this case :
Justin McElroy, Joystiq: “Much like obvious influence Mass Effect, whether or not your weapon scores a hit is more dependent on its accuracy statistic than your actual skill. Even if you line up your shot perfectly you’ll often whiff, especially in the early hours of the game. Note to developers: I don’t care if it’s realistic, making me miss because of math is never, ever, ever fun. Now stop it.”
I don't know why but if you put a gun in player's hands, it has to be a FPS/TPS.