I think a more plausible scenario would be a stage set. Pedowood is brilliant in some of their set designs, so the is precedent for them being able to do it, and look at how well they fooled the world by designing a set of the moon. They could put up 3 walls, and decorate it to make it look like wherever they wanted…remember, we're watching a movie.
The 2 boxes in Shalosi's pic are 2 spot lights aimed up at the flags…
The scene in the window of the OO is a hint from POTUS that we're watching a movie.
Would've been troll level 1 million if POTUS didn't mention the border wall at all, and left Shalosi standing there with no ammo…