Mind you, I have absolutely no military background, but I will go ahead and say when I looked at (this - I think it was the same one) earlier today, I immediately knew it was some sort of remote control object, quickly moving.
Very obviously.
Now if I’m wrong, and you know that, but you aren’t supposed to say that, then of course don’t.
But I think very clearly, this was something either radio, remotely, or maybe even autonomously guiding itself in a flight.
That is my (not an expert) opinion, and I’m sticking to it.
:D
Doesn’t look remote control to me at all. Flight path to linear(straight Line). Looks to me as some sort of missile, or torpedo(underwater?). Hypersonic?? Scale of size would be nice to know.