I got gold on just the 870 Shotgun. I've got a couple other weapons CLOSE to gold (including my Knife), but not quite there. Perhaps when I finally commit to some other weapons or just getting gold, my number will go up.
"It's worth remembering that all reviews are subjective personal opinions and if you personally enjoy the game, then they shouldn't get to you. Unless there's a dispicable nagging little doubt in the back of your mind that maybe you're not having as much fun as you've convinced yourself you're having. And won't go away no matter how many times you try to slap it away with weak excuses."