So I figured I would start a tips and tricks thread so everyone can post things they have learned to have worked in BF3.

My main tip is with flying.
1. Get a buddy in the mobile AA gun to point out flying craft behind you or locations. "Me and Konges tore up the sky the other night with him in the AA helping keep jets off my tail. and letting me know if its just an AA locked on to me."
2. If someone is locked on to you, don't just pull up doing loops, if you have flares push go up and push your nose down to flatten out your plane, it stalls your plane quickly, hit the flares as you stall. That works for me 90% of the time.
3. You can't Kamakazi into tanks/infantry anymore. The planes won't kill them "But if you put C4 on the tip of the jet before take off. It is more likely to work."

Support Mortars:
My one and only tip, Don't stay in the same spot. Fire a mortar get up and move atleast 10 yards. So they can't mortar you.