World of tanks legal system TD is not pit after level 7?

In the legal system, only Grade 1 TD is continuous, but it's fun from Grade 8. It's fast, deep and high, and the front of the car body is hard. You can play whatever you want, mainly depending on your personal preference. As a TD, it is recommended not to be on the front line, but to use grass and trees to fight black guns, or to make a second-line attack about 5 meters behind the front line.