I just saw this topic.No perks are necessary with a Carbonizer. People used to say that Capacitor was effective, but the exact opposite is actually true. You're more effective without it.Only two things are necessary: a steady hand and the ability to fire instantly (meaning learn how to switch to secondary and fire immediately). Motion Plus helps keep your cursor steady.You could run the most absurd, useless perk combination (or no perks at all) and still decimate people in general (unless, of course, you're being ambushed by SMAWs. Then you'd need Explosive Focus).