User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-3552272-20110504084038/@comment-1630756-20110507095200

Why would you put in the HK to begin with? The only time the gun would be realistically added is if the player was a Marine. From what I can guess, you'd probably be playing in the Rangers as Ramirez with his SCAR-H.

Other than that, anyone who isn't the Marines or Rangers would be using the M4 Carbine.