I asked the modeler who finished up this class. His memory was that just hitting A or D would not spin in place. So he added a small amount of forward momentum to make it work. While you are moving forward or backward, it doesn’t have this problem.
He probably meant “add a tiny bit of throttle”. That jives with my memory that you have to use throttle all the time. That is one of the reasons it’s not ideal to use this if you want a serious tank. We only have two in the entire first installment of our games. One is a somewhat cinematic adventure and the other is a tracked APC player drives in rather restricted area we can control terrain. Neither will put it through its paces where an astute player might notice it’s not an actual tank controller. Indeed, I’ll be adding it to our Wheeled Vehicle custom class and the rest of the mechanics will be pure wheeled vehicle stuff. It’s an economy of development that justifies it for this use. Track code will be reusable later on a real tank controller.
I’m still trying to get him to copy the project we built it in over to me. I was hoping to post it as a snippet and put a video up when I get it. Making the track pieces work was trying so sharing it would be ideal. I’ll probably have it this evening, though not certain.