if you're up against an awesome pilot, then NEVER NEVER get in a vehicle of any kind. he'll track you down and kill you everytime you get in one.
Never ever be extremely alone by going after an empty base because the enemy commander will spot you, and the pilot will be alerted, killing you.
never ever be w/ a ton of people. That's a given.;
Never ever MOVE when you see a jet nearby. Once you move, you become slightly more visible to pilots, and he'll strafe you down.
Never move when a heli is above you. it's harder to spot a person if you do not move.
once you even hear a jet pass over, take cover ASAP before he gets close enough to see you move. Then it's too late.
ALWAYS ALWAYS spot enemy jets. always make your teammates/cmmder spot enemy jets. not only will it help your team's pilot spot him and kill him, it'll help people on the ground to see if there's a jet nearby that will kill them.
If it's a good pilot, NEVER man the AA's, since he'll make regular rounds taking out every AA on the map. If he's a crappy pilot, and you see that no one has a dominating score on the opposing team w/ a small negative support score (pilots really rack up accidental TKs), then man the AA.
Always LISTEN for heli rotors and jet noises. that will save you from death many times over.
Take my advice, because I fly a lot, and I know what to look for when I want the most kills. I'm not a good pilot, but I've seen other pilots do insaner stuff.
Once you hear artillery firing sounds, make sure that it's from your commander (just chk map). If not, and you're next to a bunch of teammates. take cover ASAP.
also, I've never had a problem w/ hit detection. Your description is obviously flawed, since of course there were times where i'd unload on a person in front of me, and he'll turn around to kill me, but it happens because:
good medics will always have medpacks around them, and heal themselves, turn around, then kill you.
you just missed them horribly, and they landed a timely shot to your head, and not your leg. that's most likely what happened.