He doesn't react to her movement beyond a kind of weary resignation. He's kind of used to that. It doesn't mean he's going to stop carrying grenades, though. They're useful. (And he likes blowing evil things up.)

"Got to actually get us all down there if we're going to be much use. Like last time. Need to work together, for that."

... god, he is hoping they get a bus this time. Or he and his own team can just drive it. He doesn't think he can handle another trip on a train.