Having worked with loadies, TACP's, and JTAC's, I can attest that not all of the Air Force are non-combatants. Hell, even the loadies (loadmasters) on a C-130 were proud and did something vital for our troops in Afghanistan; air dropping vital supplies.
That this oxygen-thief feels morally superior because he didn't get any 'blood on his hands' unlike some of his fellow airmen, and belittles their contributions. He says basically that anyone who has killed someone is morally bankrupt.
All I have to say to this asshole is

.