The SU-57B is a rank II Soviet tank destroyer with a battle rating of 2.7 (AB/RB/SB). It was introduced in Update 1.83 "Masters of the Sea".This tank destroyer uses a 57 mm ZIS-4 for its main gun. It features a low profile, good top speed (40 km/h in RB) and great penetration for its rank, but weak armour at all angles.The overall design of the SU-57B allows for sneaky attacks, revolving around the 57 mm ZiS-4 gun that allows for engagement from medium range on unsuspecting enemies. Because of its low profile, this TD can use bushes and terrain to hide its approach. However, the trade-off is lacklustre mobility, so it compares with the ZiS-30 that provides better mobility and speed and can reposition much faster. Despite all these limitations, when played right the SU-57B can score good scores, but only when properly positioned and not detected. The main gun is ridiculously powerful for its hull. It features a ZIS-4 57 mm that has a penetration rate similar to the ZiS-30 main gun. The position of the main gun is quite low and enemies will have a hard time detecting the silhouette of the tank. However, because of its long barrel, one must be careful not to stand out from cover or from the sides.The recoil of the gun can be important and must be taken care of, as well as the dispersion effect. The relatively fast reloading rate of 6.5 seconds allows for a comfortable targeting and efficiency. Though, with the SU-57B able to hold a total of 72 rounds of ammunition, the SU-57B can shoot more freely without worry. However, keep in mind the 6.5 seconds initial reload time can be quite long when facing an opponent at close range. HistoryIn 1943 the MVTU USSR design bureau proposed an 11 ton tank hunter prototype with two main gun variants:The 75 mm S-1 main gunThe 57 mm S-1-57 main gunBoth would be propelled with a diesel GMC-71 engine.At the same moment, the GAZ design bureau was working on 2 designs. One named "GAZ-74b" which is the SU-57B with a long barrel, and an improve tactics. Credit Colbs7200's Tank Destroyer SU-57 Beta