Nine
A colonel leading so few men sounds odd to Nine. He had more soldiers under his command when he was a captain. But then calling themselves Minutemen smelled of militia, not exactly Army... He would try to find more about that later. Better to avoid delicate questions now, and stick with the conversation.
"Quincy? Been there sometimes, hiking at Blue Hills. And there was this... friend of mine that had a boat very close, at Town River Bay. I was heading there when the bombs fell...
But to answer your question, colonel, we barely had time to reach the vault on that day." He nods towards the descending elevator. "Once we got inside vaultech personal tricked us into some fancy machines and we have been sleeping there until earlier today."
Nine makes a pause, trying to observe Hamilton's reaction, but can't tell much from his face. he decides to proceed, leaving the strange override part out for now.
"Today the machines had some... malfunction, and woke us... well, the ones still alive. There are much more people inside the vault, even relatives of some of us. We were confused, but able to organize and find our way through the vault. We fought some giant cockroaches, and one security bot, with what we had. Luckily no one died, just a few injuries."
He awkardly points at his holster, careful not to make any suspicious move.
"We were able to work out that a lot of time passed, found some supplies and guns, and decided it was time to find out what happened outside. And, in a nutshell, that's what happened. We are just some survivors that mean no harm."
Nine looks at Hamilton, still trying to figure what he's thinking.
"So, can we put our arms down? No one is picking a fight here."