They could hold a contest to boost community approval; make your own gun. Most of the issue is coming up with new gun skinning's and then programming them, and when new things are added, the community makes an opinion on its looks, feel, and effectiveness in combat. A lot of the weapons for Dark Below had great looks, feel, but little effectiveness, and that's why they show less effort now, because the stats are not keeping up. They also didn't change the flavor of the game and that was a big thing for "new weapons" in FPS's...