A further modernization of the SU-76, upgraded with an extended chassis. Developed in the winter of 1944–1945. Never saw mass production.
It is very similar to the in characteristics, except that it mounts a larger gun and has a greatly increased gun arc. Many players find that this tank destroyer can double as a scout. Though not the fastest, it still proves effective. The SU-85B is able to perform reconnaissance with intent to survive, unlike others that are often-times destroyed. Should you see someone noteworthy, many players choose to remain hidden and keep the target marked for attack. With a top speed of 43 km/h, and a view range of 390m, it has the ability to fire over long ranges and get away faster than most tanks in its tier, making it a great tank for sniping or hit and run tactics. Either way, should you choose to scout or attack, the AP round is able to make quick work of low-tier tanks, and damage some larger ones. The SU-85B is able to mount the D-5S 85-A and LB-2S guns, shooting 85mm rounds at a relatively high RPM. As a TD, the 85B also has a camouflage bonus. All this comes at the cost of HP and weak armor, meaning it can not really hold up to a lot of punishment. Also, even though the gun arc is slightly better than the SU-76's, the gun elevation and depression is inferior to its predecessor, making it especially vulnerable on hilly terrain.