Well, when you're in a jet never use heat seekers they're just a waste I always use the machine gun that's on the jet it took me a couple of hours to get the hang of it. But now I have everything unlocked for my jet because all I used was the machine guns.
You'll also need some IR flares but you'll have to unlock those.
And here's a tip if you got a jet chasing you, when you turn, turn on you afterburner so you can turn easier and more sharply to get away from them and try to go through in between buildings and underneath bridges to either kill him or get behind him.
Once your behind him try to shoot him with the machine gun but make sure he's in your crosshairs, you don't want to overheat your gun.

Now the heli. I'm better at the heli than jet to be honest. When you're in a heli at all times you should have a gunner in there with you because if you get into a dog fight with another heli your wingman will be there to help you with better accuracy.
Here is my set-up.
Pilot:heat seekers, radar, and jammer/or IR Flares.
Wingman(Co-Pilot):You can have anything in your first slot, and IR flares.

Alright, in a dogfight what I like to do is lock-on to the other heli with the heat seekers but don't fire! I wait until he uses his IR flares and after he does I re lock-on quickly and then take fire.
And if your a wingman shoot the other heli steadily and when you hear your pilot use his IR Flares to early and the other guy uses the same technique you deploy your IR flares.

Hope I helped you there rookie! Now get out there and fight!

I would play with you but some idiot was booting me offline for 2 weeks and it really slowed down my connection.

I know how to fly all air vehicles really well. I got 35 jet service stars. If im playing conquest with jets i use Air Radar, ECM Jammer (it gives me enough time if a helicopter or a stinger is just camping constently locking on to me), and Heat Seekers. If your playing in the Rush Jets i use Air Radar, ECM Jammer, and Guided Missile (Your only going to be destroying ground units tanks,lav's, infantry, etc.) The minigun on the Rush jets have explosive rounds and it makes it more deadly for strafes.

If Ya Still Need Help Send Me A PM And I Can Help You From There