They aren't the shoot-em-up kind of superheroes, but equally awesome in their own way.
1. Maj. Carol Danvers (Ms. Marvel)
Major Danvers is a trained military intelligence officer and erstwhile spy. She's one of the most distinguished officers in the superhero universe, a graduate of the Air Force Academy, where Nick Fury recruited her for the CIA. Retiring from the Air Force as a Colonel to be Chief of Security at NASA before becoming half-Kree (a militaristic alien race in the Marvel Universe) and then becoming Captain Marvel after meeting a Kree alien named Mar-Vell, but she acquired superpowers after an explosion merged her DNA with the first Captain Marvel... well, it's complicated. She is an author and feminist and her powers include flight, enhanced strength and durability, shooing energy bursts from her hands, and being able to verbally judo one Tony Stark.
2. Capt. Hal Jordan (Green Lantern)
He was an elite pilot who joined the Air Force on his 18th birthday and immediately became a test pilot (it doesn't have to be realistic, it's a comic, ok?) before joining the Green Lantern Corps. He was also a hot shot fighter pilot who fought aliens as well as North Koreans. He was kicked out after decking his superior officer, who wouldn't let him take leave.
3. Sam Wilson (Falcon)
Falcon is actually an enlisted airman, not an officer. He's a former Air Force Pararescue Jumper (PJ), which makes him a great candidate for the superhero's tendency to jump into the middle of a combat situation to ice evildoers and save lives. Not content with all that, he also counsels veterans with post-traumatic stress issues in his free time.
4. Ben Grimm (The Thing)
Another Air Force test pilot (those guys are pretty ballsy, so it makes sense to turn them into superheroes), Grimm was also a Marine and an astronaut, which is how he became the Thing in the first place. For all the clobberin' and poor use of the English language depicted in the films, Grimm is clearly the superhero with the most book learnin' and the most distinguished military career. Ben Grimm's rock skin gives him super strength, durability, and resistance to extreme temperatures.
5. Lt. Col. James Rhodes (War Machine)
What better Air Force job could there be than to be the USAF Liaison to Genius, Billionaire, Playboy, Philanthropist — and your best friend, Tony Stark. That job is so awesome, it led to him being the only other person on Earth who gets to pilot a suit of armor on the level of Iron Man's.
6. Travis Morgan (Warlord)
Flying a recon mission over the North Pole led to a plane malfunction and an ejection over what should have been Northern Canada. when Morgan touched down, he found himself in the land of Skartaris, a barbarian world in another dimension, hidden inside the Earth's core. He defeated an evil magician attempting to conquer Skartaris and became Warlord. He was able to return to Earth on occasion, which makes all of this sound like a deployment to Afghanistan.