I love the new calibration system. Prior to this, all my bomber points came from low level strat porking. I couldnt hit the Grand Canyon from 25K now I can actually fly for an hour, calibrate, and celebrate rather than scream at the PC and ditch the formation.
Sounds like a cop-out, but it was frustrating as all get out to waste that kind of time and miss the target 9 outta 10 times, now it is fun again.
As far as the guns go, I dont know if its my new video card (installed same day as 2.01) or something HTC did, but I actually have hit attacking fighters and earned a few kills, something I also rarely pulled off before.