The M1216 & S12 Shotgun
Both shotguns will never compete against the R870 & KSG shotgun however they are decent.
A friend of mine advised me to try the S12 shotgun in which I wasn't too sure as it recieved flak for being the worst BO2 shotgun but I did give a go and I started to love it once I unlocked long barrel & laser sight.
Both shotguns do suffer in range but as long as you keep your engagements close, you'll destroy people with it.
The FAL, at first I used it with Select fire and left it on full auto, and did ok with it. Then I dropped the select fire and stuck with semi auto only and my KDR is going to go well above 2 with it, I dare even to say well aboce 3. I am getting orbital V sats very often now, 2 in one life is also becoming a common thing, I have never quite gotten to 4 in one life but its been close. I never thought a gun could surpass the Lsat in my eyes but the more I use it and the most messages I get calling me a booster with a modded controller despite not doing either of them, the more I love it. Red dot(blue circle) Silencer, extended mags for medium range maps, or I trade out the mags for grip on long range maps.
the SMR was my LAST gun in the AR group to get gold for diamonds. IT WAS A GRIND. the iron sights are so awful. they hinder your view of everything. the gun is THE BIG THUMP and everyone on the map will know where you are when you fire. they might also fear you if you ar the lobby leader, WHICH YOU WILL BECOME at the end of your mastery with it.
drink a few pots of coffee, settle in and dont let it break your will. 150 no perks/attachments y test you however lol. after you get over that hump, you will sail into the diamond harbor.
Its funny because I have never gotten on well with the FAL in previous titles. It just never felt right for whatever reason.
I tried it early on in my first prestige and really liked the feel of it. I haven't used it enough but it is a fantastic gun. Need to get back on that one for my Camos, still grinding on my SMR.