The IS-7 line has armour that is more reliant on angles, but has better agility and alpha damage for brawling. Other than above average penetration, the gun stats and general firepower is below-average. These tanks are all about sidescraping and angling their armor. There are three lines plus a half-complete one (The only other nation with this many heavy lines is Germany): The KV/IS-4 line features very thick side armor some thickest in the game, and moderately high health pool, but at cost of rather weak frontal armor and poor mobility. Soviet heavy tanks have good guns, are surprisingly fast, and have strong armor their frontal armor thickness makes them quite difficult to penetrate from the front unless weak spots are targeted, and their sloping can lead to bounces even from high-penetration guns. The Object 430 mini-branch features respectable armor and massive 122mm main guns, but only at the cost of gun handling and a bit of mobility. The mainly rear-mounted turret line has superior firepower, but it comes at the cost of having less protection, limited turret traverse and the inability to take advantage of many hull-down positions. There are two medium lines that split after the T-34 at Tier V, and a mini-branch that splits after the T-44: One line has forward-mounted or center-mounted turrets with average guns, but the better chassis allows them to be more flexible. However, they also have excellent soft stats, such as ground resistance and camo, which allows them to perform the roles of scouting, damage-dealing, and moving across the map adequately. Unfortunately, most of them suffer from poor gun depression, limiting their ability to go hull-down and make use of their strong frontal turrets. Most are jacks-of-all-trades and very versatile.

Soviet medium tanks are fast and maneuverable, and are equipped with accurate guns with excellent dispersion values, unlike the other lines in the Russian tech tree (and they get even better in higher tiers). While the recent map and class changes have shifted the game paradigm to a more brawl-focused ideal and reduced their relative power in general, they are still solid choices.

Like most Soviet tanks, they normally have a small frontal profile and sloped armor. Soviet light tanks are typically the fastest tanks at their tiers.

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