You missed one: Oh My God from the End of Days soundtrack. Granted it was pretty unpopular and not that well known, but if you're going to include their appearance on another soundtrack, you should probably include this one too.
Here's the song in case you're not familiar: https://www.youtube.com/watch?v=TEpvIjVauk8
I don't know the song all that well, but I've heard about it and you're right. I'll add it. By the way didn't they have a song 'Silkworms' or something like that?
On The Spaghetti Incident, it's spelled Makane, not Mackane. And also on Chinese Democracy, its Riad N' The Bedouins, not Rhiad. Other than that, this is awesome
Here's the song in case you're not familiar: https://www.youtube.com/watch?v=TEpvIjVauk8
May change the description to only include album tracks.