I don't know. If you access wikilleaks you are flagged for big brother harassment, so I never go to that site. Since it appears it was filmed from several angles, it looks like a valid event on the first one which is a mushroom cloud. The video subtitles mention a neutron weapon. But that may be guesswork. I think your guess of a tactical nuke is most likely. One of us should contact Scott Ritter, who is an expert in ballistic military weapons (he was an UN weapons inspector, jailed later for blowing the whistle on no WMD's in Iraq.) Or maybe Arnie Gundersen, who is a nuclear engineer. They might know.
The president has the power to use these things, or in this case, maybe the King of Saudi Arabia. It's just I feel, that after a certain amount of time we citizens have the right to learn about it. Since Secretary Clinton took billions of dollars from Saudi Arabia for weapon sales, possibly putting the proceeds into the Clinton Foundation via campaign donations later, I believe she is directly involved in this crime against humanity.
If true, we dodged a bullet by supporting Bernie and opposing Clinton. As a sick president, who knows how many of these things she would have dropped on Putin? And what he would do to us using his ICBM's and mobile launchers and subs that can't be stopped.