Some people would say that guns
are guns, Right? Well some people don't think so. There are sometimes guns that
are made better, or can do something better than others. One example would be
Thompson V.S MG42. The Thompson is a great infantry weapon, and very reliable.
The MG42 is good for defence, and also for mounting on tanks. It shoots a lot
faster, and is also very reliable (DiscoveryEducation.com). See? Guns are made
different, which is part of what makes them good.