Ubisoft is well aware of both of your points and don't care. They haven't patched FC4 for over 3 years now and I'm sure they have no intention of doing it now. That ship has sailed. There are workarounds for the tilting Blackhawk one of which is to place a barrel beneath the rear wing so when it stars to tilt the barrel stops it. You can test it by playing the map "in-game"... not the editor.