Fun read, but this confused me a bit:
“Negative, Sigmund. If we fall back they get into the vault. Under no circumstance can that happen. I don't know why they want in there, but their folly could threaten this system! Hold your ground.”
Why is there a concern about the legions getting into the bunker/vault if they (humans) don't know what's in it? Yet are concerned the whole system may be at risk if they fail to defend it? It seems like there was a thought that might not have made it into the word count or got edited away?