"Because most of our things were left behind," Gen mused quietly, thinking that over. There's additional implications about such a drive to get a weapon, but at least for certain missions that he saw posted by the train, it'd be useful. If Gen was less paranoid, he'd give Xue the benefit of the doubt.

But, given what the man had said ...

He smiled. "It sounds like a tricky sort of puzzle. Requiring a good deal of trial and error - unless you've been able to get any research materials, stranded as we all are on this train."