I didnīt see no badge in Robau when he was sitting in the captain's chair. Am I right?
Yeah, I thought I noticed that too, so I went back and checked. When we first see him, he's standing up and has the badge on his uniform, but then when the camera changes and he sits down in his chair, it's gone.
After that, I think he has it back on for the rest of the scene, but I'd have to rewatch the whole thing to be sure.