[”Life Threatening”? - every single day. I finally got hit in May’67 and spent 7 months in various hospitals - and when that blessed Medevac helicopter got to us, a kept an M26 frag grenade in my hand in case we went down.
Like I said, it was a bad area to be captured.]
You may be describing another branch of service, but Marine CAS always came in very hot, accurate, and did not miss.