(As I spend more time and money, I'll update the fields)
I received the tank when I bought the Gears of War 2 Special edition so far I haven't spent anything but I will soon enough! This is what I'm starting with, not really sure where I'm going to go with it but I'll keep my log here. The top swivels 360 degrees. I did a complete disassembly of the tank and took pictures of what I've got to work with and there is a commentary video. Looks like I'll be putting a servo in the top to do the gunner but will be limited to 180 degrees turning. This will most likely be where the sensor is placed also while moving around and scouting the area. The steering column will only have one motor that is already placed in the center on the vehicle. Possibly more powerful motors will be put into place for a stronger turn.