For combat, C Pack will be best. The Baron flies well, but is much more docile on the B Pack. As Capt_Bevis pointed out, if your still learning to fly, keep the control throws dialed way down to start out with. The Baron has huge control surfaces so not a lot of deflection is required for smooth flying.
Total noob here. I've been able to fly this a few times. I've always crashed – but the first plane with ailerons that I could keep in the air for more than 10 seconds. Can't wait to be able to softly land it. All that said it seems to be the most robust plane I've flown – takes a crash well.