"Accurate and deadly tank that attacks over large distances. There is no problem for him to even 50 meters of soil"
A player using the artillery class will prefer longer distance engagements. Although the in game description claims to have higher accuracy than other tanks, this is not the case with standard firing. Without it's special power ups, the Artillery class is just as accurate as the others.
This class is more tuned to the solo player, and relies on it's Energy Shield and Smoke Screen to survive for close quarters combat. However, the Supreme Cooling and Carpet Bombing ability allow the Artillery class to attack at long range, hence the "Accurate and deadly tank that attacks over large distances" description.