So, lots of speeches never played in the game. It would be really awesome if all of those would be enabled (again) :). And by the way I noticed that on the W3D CD there are some Classic-only speeches, never played and not used in other soundbanks. If you want to check you can find them from Data\Audio\Speech\Classic
For example. I think that these wavs are never played for some reason:

- bummer.wav
- hello.wav
- idle4.wav
- kamikaze.wav
- oinutter.wav
- oof1.wav
- oof2.wav
- oops.wav
- ouch.wav
- perfect.wav
- scared2.wav

Speeches not played apart from those listed in that readme, add if you know more :(.