When it isn't going particularly well...and yer tit is in the mangle....those Apaches will be worth their weight in gold. (Assuming the fellas get enough practice with real bullets and rockets to be able hit what they are aiming for.)
Sooner or later it will go all ugly and having some Cavalry to call to save you from the Indians is nice. I would suggest all the Chinook pilots borrow some money from the Apache drivers.....as a bit of extra incentive. No rescue....no repayment.