WHO PAID YOU TO GRAB DR. PAVEL?

In that particular moment CIA was bluffing, he wanted to appear as though he was killing off those who didn't talk. Bane calls his bluff in the very next line of dialogue. You seriously need a 2 digit IQ to be confused by this.

OHHHHHH BECAUSE THEY HAVE HOODS OVER THEIR HEADS AND CANT SEE
Still fucking retarded, what if the guy screamed or the other captives counted the footsteps?

So you’re wondering why someone would shoot a man before throwing him out of a plane?

In this scene, CIA does neither because he ACTUALLY has no intention of killing the captives, he merely wishes to pretend that he kills them so that the other captives would hear and be intimidated.

The reason why he shoots is because when a man falls, he screams, and if you shoot a man, he does not. However, if CIA was to not shoot the man, and instead throw him out of the plane, he would achieve the intended result of scaring the captives with the scream of the captive who is plummeting to his death.

Bane points this out, and this is why the captives are smart enough not to talk

I believe I can explain. Your parents were related but chose to throw caution to the wind and the resulting inbreeding led to them giving birth to a learning-disabled gimp (you).

Do you realize how much noise an open door on a plane in flight causes?

> The reason why he shoots is because when a man falls, he screams, and if you shoot a man, he does not.
But if you shoot right next to a mans head after threatening to kill him, he might scream.

He shoots the air because he wants to scare the other captured men. He wants them to think he killed one of them, and will kill the rest if they don't give up information.
But, he didn't actually want to kill the guy.
If he kills all three guys when they don't answer him the first time, well that's it, he just got three men that work for Bane and killed them all. He'd get nothing out of that great opportunity.
If he killed the guy by throwing him out the window, the other captured men would hear screaming on the way down, so he pretends to shoot the guy first, so they wouldn't expect to hear screaming.
Bane then says "You know by shooting that guy, you proved you're not going to kill us, right?" The idea is that Bane deduced all of that from CIA shooting a man before throwing him out of a plane. CIA didn't need to shoot the guy if he threw him out of a plane because the fall would kill him. So if he shot, he didn't actually throw the guy from the window.
It's definitely communicated weirdly, the whole scene is. I mean, I'll meme on you for being a retard that couldn't understand Nolan's vision, but don't feel bad for not getting it all right away. The whole scene definitely feels like "uhhh, I guess random cool shit keeps happening but I'm not really absorbing anything from it."

*blushes* Why thank you user *tee hee*

guns aren't loud in movies

Unlikely, a shot is quick and is over in a second, plummeting to your death takes a while

It's explained in the novel