After absorbing @Frank3K s latest dirt bikes and the like, my lizard brain remembered a 1980s SOF Magazine article about Thai (?) motorcycle dragoons. Couldn't find any evidence online of such, but I did find the Iranian equivalent.
From what I remember of the Thai unit, they had a similar arrangement - driver and gunner (both armed with folding stock AKs or short M16 variants), with a three rocket rack by the back wheel (left side, IIRC). Also seemed to remember their uniforms were dark green or black, no helmets tho.
My point is that variations of this low-tech arrangement seem suited to 21st century armies.