If that doesn't kill you, don't forget about how you can only have one character and you have to purchase a $6 character slot to make more. I fear for the micro transactions in this game.
That said, how are people good at MGO? Do they use a FragFX controller or something? I mean, I'll see a guy get 4 or 5 back to back headshots within a short time while any kill I make feels like I'm throwing dice in a game of chance.