The recent patch has brought two things which are game changing: the first one would be the Striker losing a pellet. So our trusted shotgun has now been nerfed to kingdom come (but idiots still use them.)
I know what you're thinking now: "Oh, well, they sucked before, what's one pellet going to do?" Well, you are extremely mistaken if you think that.
You see, since that patch came out, USASs and KSGs are the only things anyone is using. I forgot the last time I saw something that wasn't a shotgun. Yes, MP7s and PPs (and the fledgeling P90s) are still sighted, but it's just not the same anymore: it's all just those two shotguns (and the odd Striker - they've really lost usage now) and it's annoying seeing 9 holes in my back whenever I'm playing Drop Zone because some USAS/KSG noob shot me and capitalised on the extra pellet.
12 must be people's favourite number these days.
Don't forget, you can find me on CoD (PSN) as RoRzA_6.