I'm still missing terminals 1, 2, and 4 - those may explain it, though from the names I doubt it. Well, maybe Silentium
will answer the question.
There's a decent chance that Silentium
will. During the Halo
Fiction panel at Comic Con earlier this year, Frank O'Connor said that Silentium
was being released after Halo 4
due to the story connections between the two. I wouldn't be surprised if this ends up being one of those connections.