User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-4841664-20110731213401/@comment-4095569-20110801183602

Yes but Infinity Ward and Treyarch tend to stay away from each other. Other than the Brand name and similar structures of the game, they do not wish to share anything. Thats why their games can be so different at times.