A.) I had problems with the artillery shells freezing the game for 1 second for every hit, but i solved that by disabling the airburst fx for shells.
(sny_arty_var_show_shell_dust_effects = false) in init_general.sqs
B.) *almost* all the airstrike planes crash on IaDrang or Meekong Island. It seems to be pretty random.
Anyone has a trick up his sleeve ?