ISU-122S

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  ISU-122S

USSR | TD | Tier VII

Battle Tier

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Overview
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[Client Values; Actual values in

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Specifically, the mismatch in crew values caused by commander's 10% crew skill bonus. Outside of a crew of 1 commander only, 100% crew is a fiction. The client values, given for 100% crew, will normally be taken into battle with 110% crew skill members aside from specific functions, causing their actual performance to deviate from the expected client value. These differences are taken into account in tooltip boxes.

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4,200   Cost

870174 HP Hit Points

45.82/54.415.82/54.4 t Weight Limit

Crew

1. Commander (Radio Operator)
2. Gunner
3. Driver
4. Loader
5. Loader

Mobility

600600 hp Engine Power

43/12 km/h Speed Limit

2727 deg/s Traverse

13.0937.93 hp/t Power/Wt Ratio

YesYes Pivot

Armor

// mm Hull Armor

Armament

{{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING|| {{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING|| AP/APCR/HE {{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING|| {{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING|| AP/APCR/HE Shells

1025/4800/608 1025/4800/608 Shell Cost

390/390/530390/390/530 HP Damage

175/217/64175/217/64 mm Penetration

| |}} | |}} 8.11 r/m  ▲ Standard Gun Reload Times Nominal: 7.4 s 50% Crew: 9.17 s 75% Crew: 8 s 100% Crew: 7.1 s Rammer: 6.39 s Vents: 6.94 s Both: 6.25 s Both and BiA: 6.11 s Both and Max Crew %: 5.86 s See Crew, Consumables, or Equipment for more information. | |}} | |}} 8.11 r/m  ▲ Standard Gun Reload Times Nominal: 7.4 s 50% Crew: 9.17 s 75% Crew: 8 s 100% Crew: 7.1 s Rammer: 6.39 s Vents: 6.94 s Both: 6.25 s Both and BiA: 6.11 s Both and Max Crew %: 5.86 s See Crew, Consumables, or Equipment for more information. Rate of Fire

| |}} | |}} 3162.9 ▲ Standard Gun Using Shell Type 1 (390 Damage): Theoretical Damage Per Minute Nominal DPM: 3162.9 50% Crew: 2554.5 75% Crew: 2925 100% Crew: 3299.4 100% Crew Vents: 3373.5 Rammer: 3666 Both: 3747.9 Both and BiA: 3833.7 Both and Max Crew %: 3997.5 Advantageous Damage Per Minute First-shot DPM: 3552.9 50% Crew: 2944.5 75% Crew: 3315 100% Crew: 3689.4 100% Crew Rammer: 4056 Vents: 3763.5 Both: 4137.9 Both and BiA: 4223.7 Both and Max Crew %: 4387.5 See here, here, or here for more information. ▼ Standard Gun Using Shell Type 2 (390 Damage): Theoretical Damage Per Minute Nominal DPM: 3162.9 50% Crew: 2554.5 75% Crew: 2925 100% Crew: 3299.4 100% Crew Vents: 3373.5 Rammer: 3666 Both: 3747.9 Both and BiA: 3833.7 Both and Max Crew %: 3997.5 Advantageous Damage Per Minute First-shot DPM: 3552.9 50% Crew: 2944.5 75% Crew: 3315 100% Crew: 3689.4 100% Crew Rammer: 4056 Vents: 3763.5 Both: 4137.9 Both and BiA: 4223.7 Both and Max Crew %: 4387.5 See here, here, or here for more information. ▲ Standard Gun Using Shell Type 3 (530 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 4298.3 50% Crew: 3471.5 75% Crew: 3975 100% Crew: 4483.8 100% Crew Vents: 4584.5 Rammer: 4982 Both: 5093.3 Both and BiA: 5209.9 Both and Max Crew %: 5432.5 Advantageous Damage Per Minute First-shot DPM: 4828.3 50% Crew: 4001.5 75% Crew: 4505 100% Crew: 5013.8 100% Crew Rammer: 5512 Vents: 5114.5 Both: 5623.3 Both and BiA: 5739.9 Both and Max Crew %: 5962.5 See here, here, or here for more information. | |}} | |}} 3162.9 ▲ Standard Gun Using Shell Type 1 (390 Damage): Theoretical Damage Per Minute Nominal DPM: 3162.9 50% Crew: 2554.5 75% Crew: 2925 100% Crew: 3299.4 100% Crew Vents: 3373.5 Rammer: 3666 Both: 3747.9 Both and BiA: 3833.7 Both and Max Crew %: 3997.5 Advantageous Damage Per Minute First-shot DPM: 3552.9 50% Crew: 2944.5 75% Crew: 3315 100% Crew: 3689.4 100% Crew Rammer: 4056 Vents: 3763.5 Both: 4137.9 Both and BiA: 4223.7 Both and Max Crew %: 4387.5 See here, here, or here for more information. ▼ Standard Gun Using Shell Type 2 (390 Damage): Theoretical Damage Per Minute Nominal DPM: 3162.9 50% Crew: 2554.5 75% Crew: 2925 100% Crew: 3299.4 100% Crew Vents: 3373.5 Rammer: 3666 Both: 3747.9 Both and BiA: 3833.7 Both and Max Crew %: 3997.5 Advantageous Damage Per Minute First-shot DPM: 3552.9 50% Crew: 2944.5 75% Crew: 3315 100% Crew: 3689.4 100% Crew Rammer: 4056 Vents: 3763.5 Both: 4137.9 Both and BiA: 4223.7 Both and Max Crew %: 4387.5 See here, here, or here for more information. ▲ Standard Gun Using Shell Type 3 (530 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 4298.3 50% Crew: 3471.5 75% Crew: 3975 100% Crew: 4483.8 100% Crew Vents: 4584.5 Rammer: 4982 Both: 5093.3 Both and BiA: 5209.9 Both and Max Crew %: 5432.5 Advantageous Damage Per Minute First-shot DPM: 4828.3 50% Crew: 4001.5 75% Crew: 4505 100% Crew: 5013.8 100% Crew Rammer: 5512 Vents: 5114.5 Both: 5623.3 Both and BiA: 5739.9 Both and Max Crew %: 5962.5 See here, here, or here for more information. Damage Per Minute

| |}} 0.41 m  ▲ With 50% Crew: 0.508 m With 75% Crew: 0.443 m With 100% Crew: 0.393 m With BiA: 0.384 m With BiA and Vents: 0.376 m Maximum possible: 0.361 m For more details, see Crew | |}} 0.41 m  ▲ With 50% Crew: 0.508 m With 75% Crew: 0.443 m With 100% Crew: 0.393 m With BiA: 0.384 m With BiA and Vents: 0.376 m Maximum possible: 0.361 m For more details, see Crew Accuracy

| |}} 2.9 s  ▲ With 50% Crew: 3.592 s With 75% Crew: 3.137 s With 100% Crew: 2.781 s With GLD: 2.528 s With BiA: 2.719 s With BiA and Vents: 2.66 s With both and GLD: 2.418 s Maximum possible: 2.318 s For more details, see Crew or Equipment | |}} 2.9 s  ▲ With 50% Crew: 3.592 s With 75% Crew: 3.137 s With 100% Crew: 2.781 s With GLD: 2.528 s With BiA: 2.719 s With BiA and Vents: 2.66 s With both and GLD: 2.418 s Maximum possible: 2.318 s For more details, see Crew or Equipment Aim time

2626 deg/s Gun Traverse Speed

16° Gun Arc

-6°/+18°-6°/+18° Elevation Arc

3232 rounds Ammo Capacity

General

1515 % Chance of Fire

350 m  ▲ With 50% Crew: 275 m With 75% Crew: 312.5 m With 100% Crew: 350 m With Recon and Situational Awareness: 367.7 m With Coated Optics: 385 m With Binocular Telescope: 437.5 m Maximum possible: 501.1 m For more details, see Skills or Equipment 350 m  ▲ With 50% Crew: 275 m With 75% Crew: 312.5 m With 100% Crew: 350 m With Recon and Situational Awareness: 367.7 m With Coated Optics: 385 m With Binocular Telescope: 437.5 m Maximum possible: 501.1 m For more details, see Skills or Equipment View Range

| |}} 730 m  ▲ With 50% Crew: 573.6 m With 75% Crew: 651.8 m With 100% Crew: 730 m With 100% Signal Boost: 876 m When affected by 100% Relaying: 803 m Maximum possible: 1050.4 m For more details, see Skills or Equipment | |}} 730 m  ▲ With 50% Crew: 573.6 m With 75% Crew: 651.8 m With 100% Crew: 730 m With 100% Signal Boost: 876 m When affected by 100% Relaying: 803 m Maximum possible: 1050.4 m For more details, see Skills or Equipment Signal Range

Values are Stock - click for TopValues are Top - click for Stock

ISU-122S

VII

4200

The ISU-122S is a Soviet tier 7 premium tank destroyer.

A heavy assault gun, built on the basis of the IS tank, was effective against German heavy tanks as well as fortifications. The prototype was built at the Chelyabinsk Kirov Plant in April 1944. The vehicle entered service in August of that year, and a total of 675 vehicles were manufactured in 1944 and 1945.

Modules / Available Equipment and Consumables

Modules

Guns

Tier	Gun	Penetration (mm)	Damage (HP)	Rate of fire (rounds/minute)	Dispersion (m/100m)	Aiming time (s)		Weight (kg)	Price ()
VIII	122 mm D-25S mod. 1944	175/217/64	390/390/530	8.11	0.41	2.9		2590	106400

Engines

Tier	Engine	Engine Power (hp)	Chance of Fire on Impact (%)		Weight (kg)	Price ()
VII	V-2IS	600	15		750	36000

Suspensions

Tier	Suspension	Load Limit (т)	Traverse Speed (gr/sec)	Rmin		Weight (kg)	Price ()
VII	ISU-122S	54.4	27	0		12000	20000

Radios

Tier	Radio	Signal Range (m)		Weight (kg)	Price ()
X	10RKM	730		100	52200

Compatible Equipment

                   

Compatible Consumables

                       

Player Opinion

Pros and Cons

Pros:

• Amazing DPM, among the best in the game
• Fairly good gun stats for a 122mm gun
• Good camouflage values
• Good top speed, fast in a straight line
• Crew layout matches high tier Soviet TD's

Cons:

• Low muzzle velocity and poor accuracy for a TD gun
• Narrow gun traverse
• Turns sluggishly, very vulnerable if flanked
• Only the gun mantlet provides any real protection
• Penetration is unimpressive for a tank destroyer

Performance

Equipped with a quick-firing variant of the common 122 mm D-25, the ISU-122S can be a terror on the battlefield. With a fantastic rate of fire of 8.11 rounds per minute, the ISU-22S fires almost twice as fast as the IS and IS-2. The fantastic rate of fire of the gun allows the ISU-122S to potentially rip apart any same tier vehicle in less than half a minute of sustained fire while casually blowing up any lesser tanks . The ISU-122S can drill through the enemy team with impunity. In a sense it is similar but superior to the British AT-15A; the ISU-122S has greatly inferior armour but enjoys slightly better mobility and a gun that is far more devastating.

However, the ISU-122S is far from perfect. The armor is rather inadequate for a Tier VII vehicle and most of the same tier tanks can penetrate it with ease from any direction. It is also a large target with a 30mm roof, leaving it an extremely juicy target for artillery which can wreak havoc on its rather puny 870 hit points pool. The lack of turret accompanied by a mediocre traverse both in hull and gun leave it weak to flanking maneuvers. The layout of the vehicle also causes it to take module damage quite often. Your gun takes about half of the hull and is often damaged, and the rest of the shots seem to home on the gunner who has the life expectancy of a KV-5 radioman. These two can be highly irritating due to the accuracy of 0.41.

In Tier VIII and IX matches that the ISU-122S faces due to the lack of preferential matchmaking the D-25 isn't nearly as scary as before, forcing you to play much more cautiously. Less than ideal accuracy coupled with 175 mm of penetration will make it difficult to hit weak spots when required. However you still have your massive damage per minute, turning flanking shots and thinly armored targets into smoking wrecks.

As far as crew training is concerned, the five man crew layout with two loaders matches the "Alpha Damage" line from Tier VII onwards starting with the SU-152 and the "Mobility / DPM line" from Tier IX onwards starting with the Object 263. This saves you the trouble of having to switch loaders in comparison to the SU-122-44 plus all of your crew members get trained at the same time, which will speed up progression. If one of those vehicles is your designated target of choice the ISU-122S makes for an excellent crew trainer, especially since this vehicle up to this point was always offered with a 100% zero experience Brothers in Arms perk crew, essentially receiving it for free.

All in all the ISU-122S is surprisingly fast vehicle with a good gun that allows it to manhandle any opposition in capable hands, RNG willing.

Suggested Equipment

 

Gallery

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Historical Gallery

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Historical Accuracy Errata

The following are consensus errors or inconsistencies which have been identified with the configuration of the vehicle in question and conflict with information available on the public record. The causes for these divergences in the game are normally not disclosed and may be rooted in game balance.

*Like many soviet tanks in game the ISU-122S has increased gun depression. In reality it had -3° instead of -6°

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USSR

Tank Destroyers

Premium tanks

ja:Tank:R116 ISU122C Berlin