I like it, but the strike packages are rubbish. I use sentry gun and get like 5-15 kills with it everytime, when I use higher strike packages i never get as many kills. Like with the stealth chopper I normally only get 2-3 kills from it!
So now I use guardian with sentry gun. As it stops people getting to it to destroy it. If you position it correctly you can get so many kills!
My KD is 3.4 or something at the moment, should get higher.
But overall it's ok, much prefer the first black ops if I'm honest. Better maps on there.
I use no lethals or tacticals. Run two perk ones and 3 attachments to my gun, and no secondary weapon. M27, silencer, grip, and fmj.