the tga is clearly a texture
I'm not familiar with game development or 15-year-old proprietary file-structure; the editor doesn't exactly give context, so I'm flying blind here.
If TGA is a texture format, where would the sound files be? I've rifled through all three hogs, but the only recognizable format to me is .bin. (Doubt they'd be crammed into a binary file).
I figured they'd be in resources.hog, but nothing in here is screaming sound folder. Not like I could do much with a '.shp' file, anyway.