I better finish my testing before I try adding your ship, I don't remember which files are modded and which aren't now lol.

Does google translate (Russian -> English) help you with \Data\AI\AI.ini? I'm trying to decipher that but the goddamn comments are in extended ASCII which don't seem to want to convert. Tried pasting in Word and then switching to a Cyrillic font, but google translate displays the same gibberish anyway. Ugh.

Update:
Game will only play mono sounds - if you have anything in stereo it will not play. I was changing the MIRV explosion sounds (because it's not really exploding, it's just splitting into the separate warheads). Strange why it didn't want to play the sound I gave it... until I realised it was in stereo. Changed it to mono and now it works