That would be a drone. It was surveying the boat and used for target guidance and battle damage assessment. The weapons fire would be coming from a separate aircraft.

The Slate truck is simple for YOU. It doesn’t have lots of bells and whistles, but is still and electric vehicle that runs on computers. I haven’t heard if it has a remote connection yet, but I bet it does. Also, Jeff Bezos is an investor and I am pretty sure it is not some new altruistic streak for Amazon to launch a consumer product that they can’t monetize forever.