My favorites, they call it "the try hard classes" oh, and i know what you mean, when coming online, you deal with the animals...
(Mid/Far range) Honey badger/tracker sight/foregrip/armor piercing, perks sleight of hand/ready up/incog/extra attachment
(Close Range) Bulldog/Muzzle Break/foregrip/extra mags/. perks ready up/sleight of hand/marathon/focus/extra attachment/gambler
(Far Range/Sniper) L115/Armor peircing/variable zoom/chrome barrel. perks quickdraw/incog/focus/extra attachment
You can use your perks as need be, but these classes are why they call me a "try hard".
Hope it helps bud.