Hi, I made this for personal use a while back, but after starting a Standoff replay today, decided others might like to try it out.
The attached zipfile contains a replacement sound effect for the Mass Driver. It replaces the current (Secret Ops?) sound effect with the 1996 Saga Mass Driver. So if you've played a lot of KS WC and WCII, it might add a retro touch to your Standoff experience. Works for me.
I took the KS soundfile and converted it with WAV2IFF. The attached zip is a ready-to-go version, just add it to your Standoff directory via the readme inside.