Good job. I have all gold SMG's except for the Scorpion. Like you, I just hate that gun and have been putting it off. Decided that I need to close it out and get the camo this prestige but I just don't like it- chews through ammo, not particularly powerful.
I <3 the scorpion and found it one of the easiest guns to complete all the challenges. I did have to use toughness with it all the time and foregrip for the no perks challenge. I like the extended clip and fmj attachments. I find there is rarely a CQB I loose when playing with the Scorpion.
My least favourite was the MP7. I feel it is flimsy so resorted to ninja stealth mode sneaking around and get my kills silently. The last bloodthirsty took forever on MP7! The bloodthristy medal is so much harder to get when you are trying...lol
Grats! I got diamond ARs about a week ago. Since then Ive been working on SMGs. The only thing that kinda sucks is now that I have completed all the AR challenges, there isnt really a reason to use an AR and show off my diamonds. =( Oh well.
What are you gonna do next? ARs? Shotties? Snipers?
I can only imagine- I have about 20 kills or so with LMG's and those only from picking them up when I need something to tide me over. Just don't like the things.