I don't understand why some things in this game are extremely popular, but were very unpopular in previous titles.
Almost nobody used Focus Proficieny or Hardened, but everybody uses Toughness now.
Almost nobody used EMP Grenades last year, yet now I can't play a game on hijacked/nuketown without somebody using them. And theres usually 1 person at least using it normally anyway.
Dexterity is also popular now, but how many people used Lightweight Pro or Steady Aim Pro, but now everybody uses dexterity.
Idk why these things randomly blew up and became so popular this year.
EDIT: I also think it's dumb how every hates the Target Finder and considers it nooby, when it's a NERFED version of Marksman from MW3. It's a good attachment because it eliminates idle sway and zooms in significantly, but it's not like the attachment kills people for you.