How long does it take to unlock what I need?

It depends on your playstyle, but you should be able to find a list of everything (perks, guns, etc.) online.

Been watching my brother play the campaign (and done some playing myself) but dude did they do a good job not only on gameplay but story as well, it's like an (excellent) interactive movie. Whatever the dude who did the joker's name is did a really good job.

Look mommy, im prestige! Im not sure whether to be proud of how much I played or ashamed. Ah well.
My KD isnt that great. It sorta hovers around 1.1 to 1.0. Thats not really great considering I had a 1.3 in mw3. This game is way harder than the others.
I havent really tried quickscoping much. I had a few sniping games were I was surprised and forced to quickscope, but thats it. Does it work much? I havent had much luck when I do try.

Maybe I'd buy this if it wasn't 70 bucks.  ._.

I havent really tried quickscoping much. I had a few sniping games were I was surprised and forced to quickscope, but thats it. Does it work much? I havent had much luck when I do try.

N00bscoping is horrendously easy.

So there was a new update today for lag compensation, played MP and I experienced no lag at all. Might be like before and go downhill but at least it'll be better for being worse than today.

@manly it feels more balanced to me. Look, the main sniping guns are the dsr50 and the ballista. The ballista can zoom in faster, but is only a one shot kill if you hit above the waste and have good aim. The dsr50 takes longer to aim with, but consistently gets more one shot kills. The others are semi auto matic that are barely used by the quick scoping community.
And I haven't really noticed much of a lag diffirence.
Also, I perma unlocked ghost. Best decision ever. I can literally see the suprise on people's faces when they have a uav up and I pop up right in front of them. It's fantastic. I team it with marathon to keep moving faster. I love it.

Got to second prestige earlier. I discovered the mercenary moshpit or whatever it's called, no parties allowed and teams are random. Way better than the other gamemodes if you're playing solo. It offers several gamemodes and you're not matched against a full party of people on fourth+ prestige.

the zombies mode on BO2 has me hooked... ive been playing nonstop since it came out, it is so fascinating.

Well I unlocked the fire select attachment for the SWAT, gunna see what it's like tomorrow. I think that it'll be pretty awesome and worth the pain and suffering it's caused me.