By “inside the clouds” do you mean “in the middle of the clouds” or “under the clouds”?
I suppose some of the unexplained stuff people see in the sky may be military technology people don’t know about, but I would also assume that if they test things they don’t want people to know about it, they won’t test things like that in the sky above LA.
I mean that the objects were obscured by the clouds and not visible in the open air. They were moving around just above the cloud cover. If they hadn't been illuminated, I wouldn't have seen them at all.