Ok, the DBSM Speech 1.0.5 Mod I have tried has [Data/Sound] a bunch of .wav files which are all the sounds and a sh.sdl file which conflicts the one from the FX Update mod in the picture I included earlier.
Also [Data/Sound/Speech] folder with the Officer Folders and new sound files inc, which are sound bites from Das Boot. I like the sound of these because they fill in some of the silence and give some authenticity to the inner sub environment. I will check the DBSM Mod you d/led.
Secondly, if indeed the FX Update Mod is included then the problem is mute and I can just run the sound Mod without any probs. But I will check the TWoS Docos to see what is included.
Again appreciate your help on this, have a top day mate