Guess that using firearms contemporary or futuristic, with acuracy is quit impossible during acrobatics jumps, right?
Pretty much. Even putting a round where you want it while moving is difficult. Doing so while you’re bouncing off the walls is effectively impossible, without some kind of extremely sophisticated auto-targeting system.
That said, if your character explicitly has some kind of superhuman affinity for firearms and ballistics, they might be able to make it work. I’m talking about superheroes or maybe some kind of cyborg or android. Not something a normal person could do, though.
For what it’s worth, the idea of simultaneously firing dual pistols at separate targets is a similar situation. You could, if you wanted, use a pistol in both hands, alternating between them, but firing at guys who are on either side of you with a pair of pistols wouldn’t work without some ability to track exactly where the gun is pointed without looking.
Something like Shadowrun’s Smartguns, which link a camera feed to the user (either with a helmet’s HUD, or cybernetically), could theoretically allow for precision blind firing, and (with additional cybernetics) might allow for precision shots during acrobatics. So, when you open up the gates on future tech, this might be possible, but, probably not in the near future.