The suppressed M4, the shooting instructor said, is superior to the riot gun in terms of range, ability to defeat body armor, accuracy, ammo capacity, and lack of recoil. In addition, the suppressor provides a major advantage in an indoor shooting situation, or one where a lot of people are involved. With non-suppressed guns, the noise is deafening, and people tend to shoot "sympathetically"—you hear a thunderclap nearby and you send a burst toward it as a reflex. But with all the good guys shooting suppressed, anyone who goes bang instead of pop will mark himself as a bad guy, and be treated accordingly. Finally, M4 bullets do not disperse and hit innocent bystanders, as buckshot can.