Those 3-wheeled ATCs were cool but they’d roll over, so CCT stopped using them. There’s even rumor that there was one used at Desert One. BTW, that’s a TACAN mounted on the back.
They tried out a few different solutions but eventually settled on the Quads we see today that are used by CCT and PJ alike for a variety of missions.
too funny to see a guy rocking a gentex on a quad. wouldn’t happen these days.