Back in Jr. High we had a teacher that was recently back from Vietnam. Every Friday he would spend the 50 minutes of class showing slides and talking about it.
He told stories (rated G) of being on patrol, etc. I recall the part he hated the most was when he had to escort pilots out to their planes (choppers?) and they would often get shot at by snipers.
The F16s are the easiest to deal with, as they require a meticulously groomed airfield to operate w/o the engines ingesting foreign objects...
A more realistic threat is mortars and drones. ARs require line of sight, and indirect fire weapons are a big problem.