While it would be fairly complex to coordinate multiple systems to simulate a UAP, it certainly wouldn’t be impossible. It also would not be out of character for the US government to run an exercise to measure how a military unit would manage themselves in an unusual situation. I am not saying that is what is happening here, but it seems certainly more likely than some unknown foreign super tech, aliens, extradimensional beings,time travelers, or unknown terrestrial intelligence doing it.
Occam’s razor and all that…