Medium tanks T54 and E50 are both very good. T54 can be said to be Zhongtan with the best comprehensive performance. The essence of Zhongtan lies in the multi-directional attack in sports. T54 model is small, the whole fuselage is not only relatively difficult to hit, but also has a high probability of ricochet and is easy to use. The German Zhongtan gun is 0.27, which is the most accurate penetration of all guns, and has good long-range and mobility, but the German projectile is large and easy to penetrate (E50 and Leopard 2 are better). Barton from America is also very good.
Generally speaking, the German system plays an important role, while the Tanzanian-Soviet system in the middle. German, the most powerful self-propelled gun is American.