ooold
This is an incredibly old concept alright. Some really really basic drum patterns made with gun sounds. I myself don't think this is more interesting than a drum pattern. The sounds are extremely similar to typical drum sounds anyway, so I can call it a drum pattern if I want to.
If there was ANYTHING else than drums - perhaps some dark bassy melody that fits the dark mood of the Madness series, I dunno - this track could become slightly interesting. So how about you try making a full song out of it?
For now, this song is just another boring "using gun sounds as percussion" track.