Not sure I understand. If the terrorists inside the grounds of the Bengahzi mission had shoulder fired rockets they would not have been able to shoot down our planes that came to rescue our guys? Is that how it works?
They might try. However, the USA has extensive counter-measures to prevent that. These types of missiles are not aimed but rather have some type of target acquisition system such as infrared (seeks out hot jet engine exhaust) or radar (follow signal bounce-back). Radar heads are probably too heavy for shoulder-firing so mostly infrared. But the USAF uses very hot flare dispensers on its aircraft which will cause the missile to lock-on to the flare rather than the aircraft.
Also, and especially after the Mogadishu “Black Hawk Down” incident in 1991, we’ve come up with offensive systems to lock onto and eliminate personnel with these types of missiles. Usually they “paint” the sky with a sensor and lock onto an aircraft before firing. So we lock for their “paint” system, and then an AC-130 Gunship, miles away, can direct precise 50 caliber fire to that “painter’s” location. Wax one Jihadi.
Even without all that, I’ll bet you aour guys were foaming at the mouth wanting to go. Too bad our leadership was such pussies.