If you have Close Quarters, then I suggest you unlock the M417 sniper. It's really easy to get kills with it even if you're a newb, click on ToxicTemplar and you'll see what I mean- Link. I got in near the end of the round and easily got 20 kills with it (it was the first time I used the M417). If you don't have CQ, then unlock the M40A5 (104k recon score needed). Don't even bother with the rest.
As for the jets, you just need a bit of practice. The mouse/keyboard combo isn't that bad once you try a few times.