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(In addition, 炮手就位 is also required to design any amphibious tanks, using the drive or chassis.)

Armored vehicles now require many different technologies for different parts: armor technology for chassis, engines and armor, various artillery technology for guns, radio for radios, engineering for flamethrowers and dozer-blades, &c.

Where no technology or year is given, the module is already available when it is first possible to mount it.

Basics of design

Designing an armored vehicle is a balance of attack, speed, armor, reliability, cost, resources and more. Some may want a tank based on speed and power. Others may want an impenetrable steel block. But what matters is which modules and aspects you use to your advantage.

File:TEMP Example image Tank designer.png

Example image tank designer

Chassis

File:HOI4 NSB Tank tech in png.png

NSB Tank tech tree

Chassis type	Chassis	Year	Base Speed (km/h)	Reliability	Armor	Production Cost (empty chassis)	Resources
Light Tank	Inter-War	1918	4.0	80.0%	5	1.00	1
	Basic	1934	4.0	95.0%	10	1.25	1
	Improved	1936	4.5	110.0%	15	1.60	1
	Advanced	1941	5.0	130.0%	20	2.00	2
Amphibious Tank		1938	4.0	110.0%	15	4.50	1
Medium Tank	Inter-War	1918	4.0	75.0%	25	2.50	1
	Basic	1934	4.0	100.0%	35	2.50	1
	Improved	1940	4.0	130.0%	45	3.20	1
	Advanced	1943	4.5	160.0%	50	4.00	2
Heavy Tank	Inter-War	1918	4.0	100.0%	30	10.00	1
	Basic	1934	3.5	100.0%	35	10.00	1
	Improved	1940	4.0	115.0%	55	10.00	1	1
	Advanced	1943	4.0	130.0%	75	12.00	2	1
Super-Heavy Tank		1943	2.5	130.0%	85	24.00	3	2
Modern Tank		1945	4.5	160.0%	75	6.00	2	1

Main gun

A tank's weapon is one of its most distinguishing features in conjunction to all its others. In addition to providing most, if not all, the firepower of the vehicle, the main gun also determines which role(s) the design can fill. Anti-Air guns prevents the design from being used as a regular tank, while artillery weapons allow the design to fielded as a Tank or as Self-Propelled Artillery and high-velocity and most regular Cannons allow the choice between Tank or Tank Destroyer role.

Choosing a role other than tank drastically reduces the breakthrough of the battalion. Other than that, there are only minor differences in the base stats depending on the role chosen, other than the extra width of artillery. But depending on technology, doctrines and leaders, different roles may get very different bonuses.

Categories of main guns

The vehicle designer features a plethora of different main guns, but most fall into a few distinct categories:

'Regular' Cannons

Cannons are all-round weapons with good all-round stats for soft and hard attack, good piercing and a moderately low price. They are outperformed by a more specialised cannon for a given situation, but in turn outperform the specialised weapon in other areas, meaning they're never an awful choice.

They come in small, medium, heavy and super-heavy sizes, suitable for the various chassis. Like with the chassis, further research into the artillery tree will unlock improved and advanced cannons.

All but the small cannons enable a tank to fulfil the tank destroyer role, if chosen to be one.

Anti-infantry/howitzer cannons

Generally larger calibre and low velocity, these weapons are intended to fire large shells. Large shells, as per the square-cubed law, can carry proportionally more explosive filling for their width than smaller calibre shells. The low velocity allows the use of less robust shells with thinner walls, allowing even higher proportions of explosives for their caliber. As such, these weapons are ideal to destroy soft targets, but their low shell velocity dramatically inhibits their ability to engage other armored units.

This category includes weapons with high soft attack and little to no hard attack and piercing.

Like with Anti-tank weapons, and unlike cannons, the "Next level" of howitzer demands increasing chassis requirements. It starts off as capable of being mounted in small turrets, but the most advanced version requires a large turret or medium fixed superstructure to handle, and the intermediary howitzers need medium turret or light fixed superstructure to handle. This makes designing Self-Propelled (SP) artillery somewhat synergistic with the nature of this line of weapons.

All of these allow the SP artillery role.

Anti-tank cannons

High-velocity cannons use their increased shell velocity to more effectively pierce heavier armor. To achieve this, a gun is made longer, or more propellant is added; but as a consequence, the calibre of the weapon is smaller to keep recoil at a sustainable level. As such, the reduced shell size reduces the power of high-explosive shells, represented in-game by their low soft attack.

Similar to Anti-infantry cannons, these increase in size as they advance, meaning only a larger hull and turret can sustain them. If intended to be mounted on tank destroyers, this is of little issue, as a fixed superstructure can handle a larger gun on a smaller chassis.

These enables the SP TD role.

Anti-air guns

AA guns are anti-air weapons adapted to a tank chassis, giving the crew a mobile and armored platform to shoot down planes with. Sadly, the AA gun does not seem to be a fast-firing "Heavy machinegun", so they are ineffective against ground targets.

Mutually exclusive with any role except SP AA.

Fast-Firing ground-targeting weapons

For a period while tanks were still rare and the armored doctrine still immature, the idea of a tank to be armed as a mobile pillbox was considered. As such, they were armed only with machine guns, or the larger autocannon, and intended to mow down infantry, whilst other units capable of dealing with tanks dealt with opposing armor.

Machine guns are incredibly inexpensive if used as a main armament, but have low stats overall and minimal anti-armor ability.

Automatic cannons, which are somewhere between a large-calibre heavy machinegun or a small and rapid-fire cannon, have greatly increased (relative) anti-armor capability of machineguns whilst retain cost-effective soft attack, but still are inferior in hard attack compared with "true" cannons.

Flamethrowers

Flamethrowers spew flames at the enemy. Due to their nature, a tank must get impractically close to any target if it intends to hit anything with a flamethrower, but the nature of this weapon means it is effective when engaging immobile fortifications to burn-out dug-in units.

There is only one flamethrower module, which has absolutely no hard attack power and minimal soft attack.

Flamethrowers uniquely adapt to the size of the tank chassis, but this only affects the bonuses given as a flame tank company rather than its attack power.* (Citation needed)

Table of main guns

Category	Gun		Size	Technology	Year	Speed (km/h)	Reliability	Soft attack	Hard attack	Piercing	Breakthrough	Air attack	Production Cost	Resources			Roles allowed
														Steel
Regular cannons	(Basic)	Small cannon	Small	Artillery	1934	-0.1	-10%	10	6	25			1.50				Tank
	Improved				1936	-0.2	-10%	15	15	50			3.00
	(Basic)	Medium cannon	Medium	Artillery or Anti-Tank	1939	-0.2	-15%	20	15	60	+2		3.00	1	1		Tank	Tank-destroyer
	Improved			Artillery	1942	-0.3	-15%	32	20	90	+4		4.00	2	1	1
				Anti-tank	1941
	Basic	Heavy cannon	Large	AA or Anti-Tank	1936	-0.3	-25%	20	20	90			6.00	2	1	1	Tank	Tank-destroyer
	Improved			AA	1941	-0.4	-25%	25	35	125			7.00	2	2	1
				Anti-tank	1940
	Advanced			AA or Anti-Tank	1943	-0.5	-30%	30	40	170			8.00	3	3	1
		Superheavy cannon	BFG	Superheavy Tank	1943	-0.6	-35%	35	45	225			12.50		5	2	Tank	Tank-destroyer
Flamethrower		Flamethrower	Small	Support Engineers	1939		-5%	5					0.50				Flame-tank
Fast-Firing Anti-Ground		HMG	Small					8	2	6			0.50				Tank
	(Basic)	Automatic cannon	Small	AA	1936	-0.1	-10%	15	5	20			1.50				Tank
	Improved				1940	-0.1	-10%	20	7	35			2.00
Anti-Tank	Basic	High-velocity	Small	Anti-Tank	1936	-0.1	-5%	10	26	68			3.00	2	2		Tank	Tank-destroyer
	Improved		Medium		1942	-0.3	-17.5%	20	35	125			5.00	2	2	1
	Advanced		Large		1943	-0.4	-20%	25	45	200			7.00	3	2	1
Anti-infantry		Close support gun	Small	Artillery	1936	-0.2	-10%	25	5	10			4.00	1			Tank	SP Artillery
	(Basic)	Medium howitzer	Medium	Artillery	1939	-0.3	-20%	35	1	20	-2		4.00	2	1		Tank	SP Artillery
	Improved				1941	-0.4	-20%	45	2	30	-2		5.50	3	1	1
	(Basic)	Rocket Launcher	Medium	Rocket	1940	-0.1	-10%	25	1	2	-4		4.00	1	2		SP Artillery
	Improved				1943	-0.2	-10%	35	1	2	-4		5.00	1	2
		Heavy howitzer	Large	Artillery	1943	-0.5	-30%	55	2	60	-4		7.00	3	1	1	Tank	SP Artillery
Anti-air	Basic	Anti-air gun	Small	AA	1936		-10%	6	2	10		16	2.00				SP AA
	Improved		Small		1940		-10%	8	5	20		32	3.00	2	1
	Advanced		Medium		1943		-10%	10	5	30		43	4.00	3	1

Battalions level stats

	Vehicles required per battalion of ...
Chassis type	Tank	Amphibious	Tank destroyer	Self-propelled artillery	Self-propelled anti-air	Flame tank
Light tank chassis	60	50	50	50	36	15
Amphibious tank chassis	N/A	50	N/A	N/A	N/A	N/A
Medium tank chassis	50	50	50	50	36	15
Heavy tank chassis	40	50	40	40	36	15
Super-heavy tank chassis	40	N/A	40	40	36	N/A
Modern tank chassis	50	N/A	50	50	36	N/A

Armored recon company uses 24 light tanks.

	Supply use per battalion of ...
Chassis type	Tank	Amphibious	Tank destroyer	Self-propelled artillery	Self-propelled anti-air	Flame tank
Light tank chassis	0.22			0.42
Amphibious tank chassis	N/A		N/A	N/A	N/A	N/A
Medium tank chassis	0.25			0.46
Heavy tank chassis	0.32			0.60
Super-heavy tank chassis	0.40	N/A		0.80		N/A
Modern tank chassis	0.25	N/A		0.50		N/A

	Hardness of battalion of ...
Chassis type	Tank or tank destroyer	Amphibious	Self-propelled artillery or anti-air
Light tank chassis	80%	55%	50%
Amphibious tank chassis	N/A	85%	N/A
Medium tank chassis	85%	70%	65%
Heavy tank chassis	95%	80%	80%
Super-heavy tank chassis	100%	N/A	90%
Modern tank chassis	95%	N/A	85%

Recon and flame support companies do not affect hardness.

	Breakthrough modfier for ...
Chassis type	Tank	Tank destroyer	Self-propelled artillery	Self-propelled anti-air	Amphibious
Light tank chassis	+15%	−42%	−42%	−55%	(No modifier)
Medium tank chassis		−25%	−25%	−53%
Heavy tank chassis				−35%
Super-heavy tank chassis				−35%	N/A
Modern tank chassis				−53%	N/A
Amphibious tank chassis	N/A	N/A	N/A	N/A	(No modifier)

Company level stats

As support companies are only a fraction of the size of line battalions, they only apply a fraction of their stats to the division.

	Attack	Breakthrough	Defence	Armor
Armored recon	−60%	−60%	−60%	−60%
Light flametank	−75%
Medium flametank	−70%
Heavy flametank	−62.5%

Note that these modifiers are added together with any other modifiers: E.g. having both of the "+25% soft attack to support companies"s from the Superior Firepower doctrine would change the soft attack of medium flametanks to −20.0%.

The hardness of a division is unaffected by the hardness of equipment used in its support companies.

Tank Role Bonus

File:Tank role bonus screen.png

Example for a bonus for Tank Roles

Certain researches give a bonus for Tank Roles.

These Upgrades stack. If you have researched the Advanced Artillery Upgrade (1943), your Self-propelled artillery will get +35% Soft attack.

	Tank destroyer	Self-propelled artillery	Self-propelled anti-air	Flame tank	Amphibious
Anti-Tank Upgrade（1939）	+15% Hard attack +20% Piercing
Improved Anti-Tank Upgrade I (1941)	+10% Hard attack +5% Piercing
Improved Anti-Tank Upgrade II (1942)	+5% Hard attack +5% Piercing
Interwar Artillery (1936)		+15% Soft attack
Improved Artillery Upgrade I (1940)		+10% Soft attack
Improved Artillery Upgrade II (1941)		+5% Soft attack
Advanced Artillery Upgrade (1943)		+5% Soft attack
工兵连 III (1942)				+10% Attack on Urban +10% Attack on Fort
工兵连 IV (1945)				+10% Attack on Urban +10% Attack on Fort

Turrets

Turrets are the main source of breakthrough. Do note that roles other than tank reduce breakthrough a lot.

To summarize:

• A fixed super-structure allows a gun one size larger to be mounted, has the highest reliability, and provides some additional defense, but sacrifices breakthrough. Its cost is equivalent to a 2-man turret. An AA gun cannot be mounted in a fixed super-structure, since it cannot track the target or elevate the gun far enough to hit planes.
• The 1-man turret is cheapest, but also has the smallest bonuses. Medium 1-man turrets also have a penalty to attack.
• The 3-man turret is the most expensive and has a penalty to speed, but also has the best breakthrough. It's the option to choose if cost and speed don't matter.
• The 2-man turret is intermediate in bonuses and cost, but compared to the 3-man turret it has no speed penalty, making it perhaps the best option for fast tanks, unless they also need to be very cheap.

The tradeoffs for super heavy turrets are similar.

Chassis	Turret available
Amphibious	Light to Medium
Modern	Light to Heavy, Modern
Other	(As expected)

Turret size	Crew	Gun size	Speed (km/h)	Reliability	Attack	Breakthrough	Defense	Production cost	Notes
Light	Fixed super-structure	Medium		+20%		−25%	3	0.75	Forbids AA role
	1	Small				7		0.50
	2					10		0.75
	3		−0.25			14		1.00
Medium	Fixed super-structure	Large		+20%		−25%	3	1.50	Forbids AA role
	1	Medium			Soft and hard −25%	10		1.00
	2					16		1.50
	3		−0.25			20		2.00
Large	Fixed super-structure	BFG		+20%		−25%	3	5.00	Forbids AA role
	2	Large				18		5.00
	3		−0.25			22		5.50
Superheavy	3	BFG	−0.2	−10%	Hard −10%	24		10.00
	4		−0.5	−25%		35		12.00
Modern		Large				24		8.00

Special modules

Special modules come in three types: Extra turrets, radios and special modules.

Extra turrets enable the ability to mimick real-world inter-war designs.

Radios boost breakthrough and defense.

Special modules do a little bit of everything.

Module	Year	Breakthrough	Defense	Production cost	Notes
Basic radio Basic radio	1936	+15%	+20%	0.50	Limit of one radio per vehicle
Improved radio Improved radio	1938	+25%	+40%	1.50
Advanced radio Advanced radio	1940	+40%	+60%	2.50

Special module	Technology	Year	Reliability	Soft attack	Piercing	Armor	Breakthrough	Defense	Entrenchment	Production cost	Resources		Notes
Additional Machineguns				1.0				2.0		0.50
Amphibious Drive	Amphibious	1941	−15.0%							2.00 +10.0%			Allows amphibous role, forbids any other role Can only be mounted on light, medium and heavy chassis
Armor Skirts	Armor	1936				2.0	3.0			0.50			Limit of one per vehicle
Auto Loader	Artillery, AA or AT	1943					4.0	4.0		2.50			Limit of one per vehicle
Dozer Blade	Support Engineer	1939							1	1.00			Limit of one per vehicle The bonus applies to the whole division, even if only a single support company has tanks with this module
Easy Maintenance	Support Maintenance	1939	10.0%							-5.0%			Limit of one per vehicle
Extra Ammunition Storage			−10.0%				2.0	4.0
Sloped Armor						+25.0%				+10.0%			Limit of one per vehicle
Smoke Launchers							1.0	2.0		0.50
Squeeze-bore Adaptor	Anti-tank	1939			+10.0%							1	Limit of one per vehicle
Stabilizer	Computing	1940					5.0			2.00			Limit of one per vehicle
Wet Ammunition Storage			15.0%							1.00			Limit of one per vehicle

Wet ammo storage and easy maintenance are good sources of extra reliability.

Conversely, extra ammo storage can convert extra reliability to more breakthrough.

Secondary turret	Reliability	Soft attack	Hard attack	Breakthrough	Production Cost
Small Cannon	−10.0%	5.0	3.0	2.0	3.0
HMG		4.0			1.5

Secondary turrets have a limitation to how many can be mounted, based on the weight class of the chassis. Modern and amphibious chassis cannot mount any, light chassis can only mount 1 and medium can only mount 2. Heavy and super heavy are not limited, but there is a soft-cap of 4, because you only have 4 slots to mount them in.

Suspensions

Suspensions are the mechanical component of how the tank body would be kept above the ground and kept moving. Specifically, it determines how the suspension can handle terrain changes, and the complexity of such a component. Several inventors developed seperate and unique ways to accomplish this, with each having their own strengths and weaknesses. In-game, there are 4 "Main" suspension types for a tank: The simple Bogie, the reliable Torsion bar, the nimble Christie and the sturdy but difficult maintenance Interleaved.

Non-tracked suspensions are only available for Light chassis. They are very cheap, somewhat unreliable, and have low hardness; they will take increased damage from weapons effective against infantry (Conversely, this means they take less from anti-tank weapons).

Of the various tracked suspensions, Christie is a good source of speed, relative to a gasoline engine.

Module type	Module	Technology	Year	Max Speed (km/h)	Reliability	Hardness	Breakthrough	Production Cost
Tracked Suspension	Bogie Suspension							0.0
	Christie Suspension			+20.0%				1.0
	Interleaved Roadwheels						4.0	2.0
	Torsion Bar				15.0%			1.0
Non-tracked Suspension	Half-track Suspension	Mobile Infantry	1940		-10.0%	-20.0%		-5%
	Wheeled Suspension	Trucks	1936		-20.0%	-30.0%		-10%

Armor

The armor module of tanks describes the processes used during the construction of the tank. Riveted armor uses rivets to join armor plates; welds use welds, and cast armor casts the hull or turret of a tank as one piece. Each has its own strengths and drawbacks, represented in-game with the stats for effective armor (modifying armor value %), Production cost, and the base breakthrough and defense.

The armor investment (-)(+) modifies the armor value, and by extension the additional breakthrough value.

"Sloped armor" (Special module) can boost the armor value further, though it takes up a module slot, and marginally increases production cost.

		Technology	Year	Armor	Breakthrough	Defense	Production Cost
Armor Type	Cast Armor			+50.0%	4.0	4.0	+20.0%
	Riveted Armor			+00.0%	2.0	2.0	-20.0%
	Welded Armor	Armor	1934	+30.0%	2.0	2.0
Special Module	Sloped Armor			+25.0%			+10.0%

Engine

Gasoline engines give an extra boost to speed, though at higher opportunity cost than Christie suspension.

Diesel is a good source of extra reliability; combining it with Christie suspension is a decent compromise for many designs.

The other two engines are far more situational.

	Technology	Year	Max speed		Reliability	Breakthrough		Defense		Fuel usage	Production cost
Diesel Engine					25%					2.0	1.0
Gas turbine Gas turbine	Jet engines	1944	+0.5 km/h	+25%	−10%					4.0	3.0
Gasoline Engine			+0.5 km/h	+15%						2.0	1.0
Petrol-Electric Engine					−50%	2.0	+15%	2.0	+15%	2.0	2.0	+15%

Additional engine power or armor

Finally, extra engine power or armor can be added to the design.

Armor and engine upgrades are a (-)(+) button with up to 20 levels. Engine upgrades improve speed at the cost of reliability and fuel usage. Armor upgrades improve armor/breakthrough at the cost of speed and reliability.

Higher levels require higher technology and increase resource cost.

	Level	Technology required	Year	Extra Resources (in total)		Speed	Reliability	Breakthrough	Armor	Fuel use	Production Cost
Engine	1-4					+10.0% per level	-1.5% per level			0.05 per level	0.10 per level
	5-9	I	1934
	10-14	II	1936
	15-18	III	1941
	19-20	IV	1944
Armor	1-4					-5.0% per level	-1.5% per level	1.2 per level	+8.5% per level		0.20 per level
	5-9	I	1934	1
	10-14	II	1936	1
	15-18	III	1941	1
	19-20	IV	1944	1

Complete list of all modules

The source for the Tank modules modifiers is the file "...\Steam\steamapps\common\Hearts of Iron IV\common\units\equipment\modules\00_tank_modules.txt"

Module type	Module	Max Speed (km/h)	Reliability	Soft attack	Hard attack	Piercing	Hardness	Armor	Breakthrough	Defense	Air attack	Fuel Capacity	Fuel Usage	Entrenchment	Production Cost	Resources
Small Armaments	Basic Anti-Air Gun		-10.0%	6.0	2.0	10.0					16.0				2.00
	Improved Anti-Air Gun		-10.0%	8.0	5.0	20.0					32.0				3.00		1	2
	Automatic Cannon	-0.1	-10.0%	15.0	5.0	20.0									1.50
	Improved Automatic Cannon	-0.1	-10.0%	20.0	7.0	35.0									2.00
	Close Support Gun	-0.2	-10.0%	25.0	5.0	12.0									4.00			1
	Heavy Machine Gun			8.0	2.0	6.0									0.50
	Basic High-Velocity Cannon	-0.1	-5.0%	10.0	26.0	65.0									3.00		2	2
	Small Cannon	-0.15	-10.0%	10.0	6.0	25.0									1.50
	Improved Small Cannon	-0.2	-10.0%	15.0	15.0	50.0									3.00
Medium Armaments	Improved High-Velocity Cannon	-0.3	-17.5%	20.0	35.0	125.0									5.00	1	2	2
	Medium Cannon	-0.2	-15.0%	20.0	15.0	60.0			2.0						3.00		1	1
	Improved Medium Cannon	-0.3	-15.0%	32.0	20.0	90.0			4.0						4.00	1	1	2
	Medium Howitzer	-0.3	-20.0%	35.0	1.0	20.0			-2.0						4.00		1	2
	Improved Medium Howitzer	-0.4	-20.0%	45.0	2.0	30.0			-2.0						5.50	1	1	3
	Rocket Launcher	-0.1	-10.0%	25.0	1.0	2.0			-4.0						4.00		2	1
	Improved Rocket Launcher	-0.2	-10.0%	35.0	1.0	2.0			-4.0						5.00		2	1
	Advanced Anti-Air Gun		-10.0%	10.0	5.0	30.0					43.0				4.00		1	3
Heavy Armaments	Basic Heavy Cannon	-0.3	-25.0%	20.0	20.0	90.0									6.00	1	1	2
	Improved Heavy Cannon	-0.4	-25.0%	25.0	35.0	125.0									7.00	1	2	2
	Advanced Heavy Cannon	-0.5	-30.0%	30.0	40.0	170.0									8.00	1	3	3
	Heavy Howitzer	-0.5	-30.0%	55.0	2.0	60.0			-4.0%						7.00	1	1	3
	Advanced High-Velocity Cannon	-0.4	-20.0%	25.0	45.0	200.0									7.00	1	2	3
Super-Heavy Armaments	Super-Heavy Cannon	-0.6	-35.0%	35.0	45.0	225.0									12.50	2	5
Flamethrowers	Flamethrower		-5.0%	5.0											0.50
Light Turret Type	Light Fixed Superstructure		20.0%						-25.0%	3.0					0.75
	One Man Turret								7.0						0.50
	Two Man Turret									10.0					0.75
	Three Man Turret	-0.25							14.0						1.00
Medium Turret Type	Medium Fixed Superstructure		20.0%						-25.0%	3.0					1.50
	One Man Turret			-25.0%	-25.0%				10.0						1.00
	Two Man Turret								16.0						1.50
	Three Man Turret	-0.25							20.0						2.00
Heavy Turret Type	Heavy Fixed Superstructure		20.0%						-25.0%	3.0					5.00
	Two Man Turret								18.0						5.00
	Three Man Turret	-0.25							22.0						5.50
Super-Heavy Turret Type	Three Man Turret	-0.2	-10.0%		-10.0%				24.0						10.00
	Four Man Turret	-0.5	-25.0%						35.0						12.00
Modern Turret Type	Modern Turret								24.0						8.00
Special Modules	Additional Machineguns			2.0						2.0					0.50
	Amphibious Drive		-15.0%												2.00 +10.0%
	Armor Skirts							2.0	3.0						0.50
	Auto Loader								4.0	4.0					2.50
	Dozer Blade													1	1.00
	Easy Maintenance		10.0%
	Fuel Drum	-0.25										100.0			2.00
	Extra Ammunition Storage		-10.0%						2.0	4.0
	Sloped Armor							+20.0%							+10.0%
	Smoke Launchers								1.0	2.0					0.50
	Squeeze-bore Adaptor					+10.0%											1
	Stabilizer								5.0						2.00
	Wet Ammunition Storage		15.0%												1.00
Radio	Basic Radio								+15.0%	+25.0%					0.50
	Improved Radio								+30.0%	+45.0%					1.50
	Advanced Radio								+45.0%	+65.0%					2.50
Secondary Turret	Heavy Machine Gun		-5.0%	3.0	1.0				1.0						1.00
	Small Cannon	-0.2	-10.0%	5.0	3.0			-5.0%	2.0						2.00
Tracked Suspension	Bogie Suspension
	Christie Suspension	+20.0%													1.00
	Interleaved Roadwheels		-10.0%						4.0						1.00
	Torsion Bar		10.0%												1.00
Non-tracked Suspension	Half-track Suspension		-10.0%				-20.0%								-5.0%
	Wheeled Suspension		-20.0%				-30.0%								-10.0%
Armor Type	Cast Armor							+50.0%	4.0	4.0					+20.0%
	Riveted Armor								2.0	2.0					-20.0%
	Welded Armor							+40.0%	2.0	2.0
Engine Type	Diesel Engine		25.0%										2.00		1.00
	Gas Turbine	+0.5 +25.0%	-10.0%										4.00		3.00
	Gasoline Engine	+0.5 +15.0%											2.00		1.00
	Petrol-Electric Engine		-50.0%						2.0 +15.0%	2.0 +15.0%			2.00		2.00 +15.0%

战争 

机制 

事件与决议

事件 • 决议