TheMarshmallowBear
Benelovent Chieftain of the Ursu Kingdom
Apparently these are files to do with sound, either effects or music or spoken audio. No other scenario includes these kinds of files. I'm not sure if Red Death actually has unique sounds though. I've never played it.
I think it does, it seems to have imported somehow the lander sounds from Beyond Earth.
The other refers to the Shrinking Borders (I think), and few ambience sounds.