The Taliban don't use RPGs to target aircraft, the weapon isn't suited for that, it's an anti-armour / anti-vehicle weapon. It's comparable to trying to use a 9mm handgun to bring down a bird of prey at a few hundred feet. Just a waste of ammunition.
I can assure you the above statement is complete pump, from repeated personal experience, as can most of the Chinook Force.
I suggest you stick to keeping the EFI safe, and leave the Talibans TTP's to those who make it past the perimeter fence.