How can I make a flight of helicopters keep their dressings? Whenever I have a bunch of them grouped, trying to get them to do coordinated strafing runs, they keep colliding. Hilarious results ensue, of course - for the enemy, but it usually means there's a lone UH-60 cruising past a few hundred Shilkas later in the cutscene.
It's primarily for cutscenes, but I guess the solution would also work in missions.
Someone told me to use setpos, which works to some extent in cutscenes, but it's rather less successful when all the choppers have to do things.