turned-out crew of T-72 is not hurt, when T-72 (turret) hit by RPG-75. They just turn in and start attacking you.
When flying with two helicopters in multiplayer (non-dedicated server) my friend and me detected following problem:
He's aiming at let's say 270° - fires his rockets (no matter if FFARs or Hellfires) - the rockets hit the correct spot, but from my point of view the rockets seem to fly e.g. at 150°
Tested on two maps with OH-58, AH-1, AH-64 - no change :-(