The lights are on
OK, this is the first guide I've written , so I hope I get it right. Anyway, like the title says, this is non-definitive, meaning people have different opinions on it, and my way isn't the only way.
First off: weapons. To be successful in quickscoping, you're going to want to use the Intervention, as it is more accurate than the Barrett, and does more damage then the M21 or WA2000. Also, I have found that a pistol is best for secondaries in quickscoping, for two reasons.
1) You whip it out really fast (that's what she said).
2) If you have a good trigger finger, you can dispatch enemies quite efficiently and quickly.
Now onto Perks. Now, for Perk One you'll want Sleight of Hand Pro, with no other options here. For perk two, Stopping Power Pro is best, but it doesn't matter that much, because the Intervention does a lot of damage. For perk three, Steady Aim Pro works best, because while quickscoping, you'll most likely also be no-scoping. Also for perk three, Ninja Pro works too, but only wen you want to be stealthy.
Last, but most certainly not least, killstreaks. The killstreaks you choose really depend on what game mode you're quickscoping in. If you're quickscoping in Free-For-All, I suggest UAV, Counter-UAV, and Harrier. Two other possible killstreak combos I use are: UAV, Predator, Harrier, and UAV, Counter-UAV, Predator; but to be honest, it really depends on what you prefer. For games modes besides FFA, the killstreak setup doesn't matter, as there are much more people to be killed, and in FFA if somone steals your kill, you just kill them.
And remember, this guide is non-definitive, everybdy has an opinion.
Final note: my PSN name is ZeroxWinter; add me if you want, but tell me you're from GIO, or I'll ignore it.