I beg to differ. I think a T rating would be fine. In my eyes Halo was barely a rated M game and the M rating was really just because it was an FPS. Honestly a good movie adaption of Halo would be PG-13. Look at the Batman Arkham series. It's rated T but has plenty of grit, violence, and dark themes. I don't know what your so worked up about. Are you just afraid you won't hear the F word or something? Calm down. Most ads for the game say "THIS GAME IS ANTICIPATED TO BE RATED M" so I would calm down about it if I were you.