Names (Destiny)
So some careful experimentation (read: intentional deaths) shows that the green Fallen belong to "The House of Exile" and the local Hive are from both the "Hidden Swarm" and "Spawn of [[I forget the name already, but its whatever the temple was named. Cotra?]]" Also, the descriptions of two other missions on the Moon can be read after you complete the first one, which mentions a library and sword that's slain thousands of Guardians.
Names
On the moon mission when you find the dead Guardian, laying near his corpse is a big ass sword made of bone. Like Buster Sword big
Nice!
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The Flood!
Knowing that the Hive are "space zombies", I think I might know that that Library is... :P