This loop sickeningly reminds me of Shadowrun for the Sega Genesis. It has all the same types of qualities, and the "jet" noise at the beginning is almost the same as the jet noise during the opening cutscene when you start a new game.
Check out the 24-second mark of this gameplay video and you can hear exactly what I mean:
http://www.youtube.com/watch?v=h-ibDn OkWNc
Not that there's anything wrong with the similarity; I love the tone. Please tell me you used Genesis Shadowrun as inspiration, it would make my day!