I'm more with CHEWIE in wanting what's on film over him having the rank badge.
I think the headset could be made as part of the removable helmet, rather than a separate piece, but that of course requires a new helmet mold to be made. Still, it's pretty noticeable as in all the pictures Scott provided. It certainly stands out compared to a regular DST without the headset.
Another interesting thing... Check out the cut of the tunic on the photos? Definitely different than an Imperial Officer's jacket like Tarkins. Definitely different than the DST figure we have as well. It folds to the left and is almost centered. This is actually MORE proof that this character was wearing grey, not black, as the only characters seen with that cut of jacket were background officers in the halls, wearing grey. It makes me wonder if he is actually wearing the pants OVER the boots rather than tucked in as well, which the Death Star officers wandering around with that jacket had their pants over the boots.
It's one of those "creative license" things since he's not out from the console, but I think the argument could be made now, seeing that the uniform appears to be very similar to other characters who are more easily seen. I'm ok with either really, but I do find it interesting. The distinct cut of the jacket really stands out now.