Familiar situation: the battle is over, experience is added to your research total, and you can’t wait to check whether the total is enough for the subsequent vehicle upgrade. But you wouldn’t be a true tanker if you didn’t check on the characteristics of the new module before researching it. Major questions: what is the first module one should spend experience on and what benefit will you get from upgrading that module?

As a rule, it is quite easy to see the difference between the old and new modules if we compare their characteristics.

KV1-S guns comparison

Although sometimes here’s what happens: for instance, you compare the stock and the top suspensions of a vehicle and see only one difference: traverse speed. Some questions arise: why research this module at all? Why not save the experience for something more useful?

However, it is not that simple: besides the characteristics listed in the client, there are dozens of other parameters that each module has. There are so many of them that it would be unreasonable to put them all on the screen: the game would look like an engineering and technical manual on armor. This article will get you familiar with hidden characteristics of some modules.


Perhaps, this is the least researched module. And that is easy to understand, because the players see only some of its parameters, the main of which is traverse speed. It indicates to which degree a vehicle is able to turn in one second. Most of the vehicles have two suspensions at their disposal: one of them comes with the vehicle and another one should be researched and mounted by the player.

Let’s take, for instance, the suspensions for the heavy Soviet tank T-150 which are basically the same. They have the same weight and load capacity, and their traverse speed indexes differ only by one degree. The T-150 is not the most maneuverable and mobile vehicle, thus one degree will hardly improve the situation. In that case, why should one spend experience on this suspension?

In reality the behavior of the vehicle will change greatly. Here are the suspension parameters that are not indicated in its characteristics:

  • Track armor influences the type of damage received by a vehicle. If an enemy shell hits one of the sides through the track, the armor of the track works as a protecting screen and lowers the chance of main armor penetration. When hit by a High-Explosive Anti-Tank (HEAT) shell, the track can entirely eliminate the damage.
  • Track durability determines when the tracks will be destroyed and how many Hit Points should be lost to put them out of action. The higher durability the tracks have, the more effort the enemy has to put in to immobilize the vehicle, especially if the enemy causes low damage per single shot.
  • Repair speed influences the time required to restore tracks. The faster the repairs, the less time it will take for the vehicle to move without using the Repair Kits and the better effect the Repairs skill and Toolbox will have.
  • Crossing capacity is a parameter that influences performance of the vehicle on different types of ground. There are three of them in the game: hard, moderately soft, and soft. The higher the crossing capacity, the better the vehicle gathers and keeps speed, and makes turns.
  • Influence on reticle dispersion: replacing the suspension may decrease reticle dispersion on the move and in-place turning. This means that you will spend less time aiming before taking an accurate shot.

Let’s see what really happens to the T-150 characteristics if you replace the suspension:

  • Crossing capacity will increase by 14% on hard ground, 17% on moderately soft ground, and 20% on soft ground.
  • Reticle dispersion on the move will decrease by 8%.
  • Track durability will increase by 7.6%.

So, you see that improvements will not be limited to the abovementioned one-degree increase in the chassis traverse speed. Are you still thinking of suspension upgrades practically? To help you make up your mind, we will unveil some more secrets: improvements from suspension upgrades on some vehicles will include a 20% decrease in dispersion on the move or traverse, increased speed of track repairs, and improved vehicle dynamics (better than in case of engine upgrade).



Turrets, like suspensions, often have quite a few differences between each other. As you learned from the game client, turret upgrades increase Hit Points and the view range of a vehicle. Sometimes players have to replace a turret to mount a top gun. But in most cases tankers are reluctant to spend experience on turret research. Such approach is rather short-sighted because turrets, like suspensions, have several interesting hidden characteristics:

  • Different turrets may hold a different number of shells. So if you suffer from a shortage of ammunition on the battlefield, a new turret may solve this problem.
  • Gun loading speed usually increases significantly after the turret upgrade (provided that a gun can be mounted on both turrets). For example, in the stock turret the 7.5 cm Kw.K. 40 L/48 gun on a German Pz.Kpfw. IV medium tank can fire 6.91 shots per minute while in the top turret this increases to 7.46 shots per minute.
  • Gun dispersion on traverse is lower for top turrets, and this characteristic may become of crucial importance in the heat of the battle.
  • Gun dispersion upon firing also depends on the turret to some extent. This characteristic is of great relevance for guns with a high rate of fire: when the aiming speed is lower than the loading speed, you will not be able to leverage the high rate of fire to its full effect.
  • In rare cases, minimum gun dispersion may decrease after turret replacement.
  • Aiming time sometimes decreases after mounting a new turret.
  • Camo loss after firing is a parameter that slightly changes a vehicles visibility upon shooting. It depends mainly on gun caliber.

If we compare turret characteristics of the Soviet IS-8 heavy tank, we will see that they are absolutely identical. Hit Points are the only difference between these two turrets. But if you upgrade a Soviet heavy tank IS-8 turret, your vehicle efficiency will increase not only in HP but in other characteristics. These are small, but important changes:

  • Rate of fire will increase from 5 to 5.15 rounds/min.
  • Gun dispersion on turret traverse will decrease by 20%.
  • Aiming time will decrease from 3.4 to 2.9 sec.

When you know about all these changes turret upgrades do not seem quite so useless. So if you would like to fire more often, with greater accuracy, and spend less time aiming, it is recommended one does not ignore turret upgrades.



Probably there are no players who are unaware of engine upgrade effectiveness: the more powerful the engine, the more maneuverable the vehicle. Everything goes as simple as this, until the player encounters engines of the KV-3 heavy tank: V-5 and V-2IS. These modules have no differences, and players usually research the second engine only because it is followed by the third one, which, they think, should be better for sure. But, as you might have guessed, the engine has hidden characteristics:

  • Engine Hit Points, as in the case of the suspension, affect the chance of damage.
  • Repair speed speaks for itself: the higher the characteristic, the faster the engine will be repaired after being damaged.
  • Engine power significantly increases the vehicle traverse speed.
  • Chance of fire on impact. This parameter is included in vehicle characteristics. Many players ignore it, though the importance of this parameter can be seen from its name.

Thus, KV-3 efficiency will improve upon the intermediary engine mounting as follows when going from the V-5 to the V-2IS:

  • The engine Hit Points will increase by 58%, so it will be much more difficult to damage or destroy.
  • Engine repair speed will increase by 50%.

As you can see, vehicles are worth upgrading in many cases even if a new module seems ineffective. Many times the hidden characteristics may become your advantage during battle and bring you closer to victory. Good luck on the battlefield!