Tandy said:The box looks more than an attachment to me. Perhaps its no part of the armor,might be some kind of "backpack"
I thought it looked like an attachment as well. It looks like it's got welds instead of rivets, and a strange piece of overhanging metal on the front near the top. I can't see where it could open, but maybe there's a hinge somewhere and it is meant for storage. At this stage only the Bethesda guys would know for sure, and I doubt they're about to tell us any more than they have already.
Mick