Colonel Ross' helicopter has 2 different armament arrangements which change between shots: one with 2 rocket pods and 2 machine guns, the other with a rotary cannon and a rocket pod.
When Hawke and Dom leave Santa Theresa in Airwolf to battle Colonel Ross, a co-pilot in flight suit and helmet can be seen in through the front window as they take off. There is no co-pilot in any following scenes.
The men controlling the tanks by remote control are doing so out of their line of sight and there is no video feed. Yet, they are navigating the tanks into and through the village of Santa Theresa and aiming their cannons with great accuracy. Controlling a remote control vehicle would require some sort of navigational feedback.
A string attached to the snake's head could be seen.