Not so fast, said EYECANDYAIR. They're behind the design.
Sure enough, there was more to come. The backplate depicts the Tomb of the Unknown Soldier at Arlingtion National Cemetery, and is partially based on a photograph taken by Sgt. Jose A. Torres Jr. of the 3rd U.S. Infantry Regiment, aka "The Old Guard." Pretty cool.
Here's the mask in its entirety.
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