Why the hell would somebody leave because old guns are getting left behind as new ones brought in? The new weapons won't feel or play the same as the old ones that we are used to. That just means we get to have a fresh experience. The damage will still get done and bad guys will still die. We may all feel the need to move on to a different weapon type in order feel competitive but who cares. The game doesn't really change. See something. Shoot something.