I don't want to burst anyone's bubbles.....but it's not confirmed until a Dev acknowledges it..... as far as I can tell its a wall paper or concept art which would display any number of things that never made it into the main game.
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We've seen it loads of times in pics and vids
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We have? I missed this completely.
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You're right, I knew confirmed was a stretch. I tried making this post a couple different ways, but got no replies. However, that looks like an in-game model of final product wall paper to me. It is not concept art at all. All the other images with it are all confirmed images of in-game models too. You can identify the equipment on all three guardians.