Some verses of the song "115" sound like they are talking about the stuff that went down on Moon. But be warned, I only know about the Moon stuff from Youtube videos and the COD Wiki so some may be incorrect.
"No one can see me and
I've lost all feeling and
I know I won't die alone
I'll stop you from breathing and
all your deceiving and
this house is not my home"
No one can see her and she lost all feeling? Was this because she was in the MPD or whatever it was?
All your deceiving? Was this when all the guys like Schuster and Groph(?) betrayed Maxis?
This house is not my home.. Would this be reference the MPD again?
CHORUS 2 - PART 1
"and everything dies
look to the skies
to see the end of all creation again"
Everything dies, look to the skies. Is this referencing the rockets shot at Earth? "ending creation" so to speak?
"See with your eyes
my army of flies
when no one's alive
bring me 115"
Samantha could control the zombies, so it's her army and no ones alive because they are obviously zombies, or at least that's my interpretation.
One other part of the song...
"and everyone dies and
Samantha was angry that the Group 935 had betrayed Maxis and so, because they lied (everyone lies), she took control of the zombies and killed them all (everyone dies).
Some stuff I've said may be incorrect, as I said, don't come down on me too hard about that!
This is only my interpretation, because the lyrics now seem to make sense.