Down plus X is your friend (or whatever button evade is on your set up), it'll make the Banshee do a loop then fly in the opposite direction. If you venture out into enemy territory to get a kill it'll allow you to evade some fire, switch direction and set up a quick boost back to your base.
Also never hover in one place too long, set up a shot, fire, then boost away. Splash damage is pretty good so sometimes a blind shot into a group of enemies or a vehicle pays off more than lingering around to line up a good shot and giving the enemy more time to blast you out of the sky.
Plus nothing beats randomly firing into enemy territory and getting a vehicle double kill.
[[PSN - NekuShibuya]] [[Xbox Live - monixion]] Currently Playing: Halo 4, Pokemon White 2, Theatrhythm
Hit n run. That's how you roll in a Banshee. Hover around somewhere safe. Look around. Acquire target. Commence your bombing run. Hit or miss, doesn't matter. You GTFO right after. Repeat. In and out before anyone gets wise enough to focus fire you down.