I bought the version without the radio and servos so I needed a six channel radio & receiver, two 1/4 scale servos for steering and three standard servos for speed control, turret rotation and gun elevation.
It’s a unique setup where one large 24 volt motor, controlled by an electronic speed control, drives a geared transmission. Steering is done by control levers that engage, disengage and reverse the gearing.
There are three lever switches that control the turret rotation and gun elevation and these are controlled by two standard servos. These can be replaced by ESCs and I probably will go that route later, for now I’ll operate it as it was designed.