Well - I wonder how my little speakers in my IPad, playing videos of the Israeli artillery and bomb strikes in Gaza sound perfectly recognizable?
They are recognizable on you small device, of course. But (as you said) there is no way they can have the literal impact of a real explosion or gunfire.
The sonic capabilities of electronics are nowhere near what is required to render real explosions or gunfire. In sound, the defined term “attack” is how long it takes for the volume of the sound to go from silence to maximum level. Semiconductor response time, compression, gating, and other types of audio processing can degrade a sound’s attack, changing the character and quality of the audio.