Got the last unlock for the Jet. So after a bit of time in the jet, some impressions:
Afterburners do not work for me, at all. Admittedly, I've only flown the jets available on Rush, so maybe they do not have afterburners?
Engineers should not be able to kill a jet in one hit. Even with flares and stealth equipped, when two or three engineers are constantly locking onto you, they will eventually hit you. A one hit kill is silly.
Heat seekers are a must. Everything else can be taken care of with the gun. Tanks are really easy to disable/kill, so long as you can see them, anyways.
Try to approach from steep angles. Makes you harder to see, and gives you more time to line your shots up.
Operation Firestorm is ridiculous, aside from hunting the enemy jet and killing the occasional tank, jets are useless on this map. The area is too cluttered to get good shots off.
I prefer extinguisher to flares. Haven't tried the ECM yet, could be interesting.