Hi,
As the shame of having no sound for the boompack made my heart hurt every second of my life, I decided to eliminate this injustice.
So there is a launch sound for the beginning, a flying loop, a cracker sound to be played during flight, and a firework explosion sound. The object is fully functional, authors.txt is included.

I hereby license the file Boompack.ocd.zip under the CC-BY license