another way is to create a mod and copy the sound from vanilla sins into your mod's sounds folder, then activate your mod in entrenchement( I did this because of the HORRIBLE soundfile used in the cobalt in entrenchment( sounds like the telstra/optus/vodaphone help lines ie indian subcontinent btw these 'help lines' are horrendously slow and unhelpful typical queing times is between 20 minutes and 2 hours (i kid you NOT) and once you actually start to talk to a "person" there is this EXTREEMLY THICK accent to decipher while they are rattling off their SCRIPT at a million lightyears a second and if you manage to break into their spiel andactually get them to listen to your problem with their service they drop the line and you have to start over, but if you manage to beat them to this point then they want to esilate the problem to the next level which starts the whole mess from the beginning)
sorry about the rant but thinking about THAT accent makes me want to BOMB the whole region to GLASS 10 metres thick
harpo