Different opinions don't offend me.

But allow me to convince you before an editor forces you to change it anyway.

The reality is the explosion put him there. You speak about perception. When you use third person, you must make viewpoint clear. If you used first person, maybe. But the prose reads in third. So, remember, you have the reader watch in “omnipresent” view.
I won't post the video, but look at this image:
http://chronicle.augusta.com/images/headlines/011797/met_bomb1.jpgNotice how the explosion comes first, affects the woman's hair second, and in the next frame both people will hit the ground third. Stimulus and response. We see it as third person. To them, they will hit the ground and wonder what happened afterwards. That's potentially first person.
The closer the stimulus is to the response, the clearer the prose reads. Unless you do this on purpose, such as for mysteries, the reader will stumble.
Now, if I wrote this in first. Perhaps.
Let's say, the antagonist hits the protagonist in the back of the head with a baseball bat. The viewpoint character (protagonist) won't have any idea what hit him as he collapses. In this case, stimulus is there but unseen by the main character. So yes, since he didn't see it, it cannot appear in viewpoint for the reader. But viewpoint's another thread...
This is one of the many, many reasons you want stimulus first and response second.
Now, the cliché might be true. It might even be reality to some. But, you're not writing reality. You're writing fiction, which is better than reality. Also, and believe this now before an agent and editor points it out, when you use clichés it sounds amateurish and lazy. It signals to the reviewer you couldn't come up with anything better and went the easy route.
You're the writer. You're supposed to be creative. You don't get to use someone else's material which is now old hat.
Make sense?
And, coming from personal experience, you don't shoot at everything in combat. If you do, the Law of Armed Conflict (LOAC) will have your ass. Even under stress, you keep your cool. For civilians, the cliché might sound true. For trained soldiers, they know better. It's Boot Camp and Basic Training's number one rule: work under and during extreme stress without losing it.
Otherwise, your teammie becomes a liability for the team. You'll have to trust me on that one. Unless you intend the character to be a loser or a coward, I wouldn't do it.
But, as always, your call.

Wolfe