Fitz is a nickname for administrative access. It's a protocol that signals defenses to stand down and allow changes to be made. If you see anything running on a Fitz, sit back and let it do what it wants.

[He pauses to consider more, scanning out deeper into ROM.]

It's also in a profile setting. Matches this model.

[and then Fitz is simply there in the room with them. It's his old body, the one he'd had when they left Earth. But it's also very much a construction, standing there with vacant eyes and a slumped posture, a virtual suit with nothing running inside it.]