I have nothing against instructors using the name of a military unit to sell either their own hand-to-hand combat system or one that is used effectively by that unit. Not at all. For the most part, I see this as a marketing thing and each instructor/author has to make decisions on that front.
If you want to connect a USB device to an HDMI device then you must use a converter box. This is a set of electronics that change the protocols and signals. The only adaptor which works is the DVI-HDMI ones.
Make sure both the HDMI end and USB end of the adapter are connected correctly. 1  Make sure the HDMI end of the adapter is connected to the HDMI port on your HDTV, monitor, or projector. Use the included HDMI extension cable if needed.  Make sure the USB end of the adapter is plugged into a USB power source.