Hi there, just tried it again. Left a detailed description of the issue on your teammate's comment. Don't worry about bad design, we all learn from mistakes. In my game, people have a real hard time what to do after the introductory part. We become better with time. So the tank controls just fine, the difficulty is in the zombies being too powerful and fast. Also, the tank slips on the ground (moves when trying to fix it). I went into practice and when I went into play mode after, I was outside the tank, but controlling the tank, so that's a bug you might want to look into if you decide to push the projects forward. Good luck if that's the case!