步兵科技

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钢铁雄心 IV

陆战

集团军

陆军师

作战计划

陆军战斗

步兵科技

支援科技

装甲车辆科技

火炮科技

陆军学说

步兵科技科研树解锁了新的步兵装备，机动步兵装备和机械化装备，以及解锁和改进特种部队，并提升了步兵和骑兵的整体战斗力。

步兵科技科研树

武器和装备

步兵武器

步兵装备代表步兵的标准武器套件，是任何部队的基础。每个国家都可以使用1918年的基本步兵装备，而所有主要国家和非主要国家都已完成1936年武器的研究。共有四种越来越先进的步兵装备。

图标（通用）	科技	年份	基础花费	先决条件	描述	统计
	基础步兵装备	1918	自动解锁	无	第一次世界大战中的发展的初级步兵装备。	2 防御： 20.0 突破： 2.0 对人员杀伤： 3.0 对装甲杀伤： 0.5 最大速度：4.0 km/h 穿甲深度：1.0 可靠性：90.0% 建造花费：0.43 解锁 步兵 人力：1000 训练时间： 90 恢复速度0.30 补给速度：0.07 镇压能力：1.5 组织度： 60 HP：25.0 运输重量：0.5
	步兵装备 I	1936	127天	需要基础步兵装备科技	个人和部队使用的步兵武器，以及士兵所需的其他装备	2 防御：22.0 突破：3.0 对人员杀伤：6.0 对装甲杀伤：1.0 最大速度：4.0 km/h 穿甲深度：4.0 可靠性： 90.0% 建造花费：0.5
	改良步兵装备 I	1938	127天	需要步兵装备 I科技	步兵适用的单位或重武器，亦涵括其他所需杂项装备；武器采用更先进型号，装备也更专业。	升级 对人员杀伤： +5% 对人员杀伤： +5%
	步兵装备 II	1939	170天	需要改良步兵装备 I科技	个人和部队使用的步兵武器，以及士兵所需的其他装备。更现代化的增加了大量的冲锋枪和反坦克步枪。	3 防御：28.0 突破：4.0 对人员杀伤：9.0 对装甲杀伤： 1.5 最大速度：4.0 km/h 穿甲深度：5.0 可靠性： 90.0% 建造花费：0.58
	改良步兵装备 II	1940	170天	需要步兵装备 II科技	步兵适用的单位或重武器，亦涵括其他所需杂项装备；武器采用更先进型号，装备也更专业。	升级 对人员杀伤： +5% 对人员杀伤： +5%
	反坦克步枪 I	1942	127天	需要步兵装备 II科技	给我方步兵单位装备反坦克步枪能让他们对抗轻型装甲车辆的同时也保证不丧失机动力。	升级 对装甲杀伤： +25% 穿甲深度： +100%
	反坦克步枪 II	1943	127天	需要反坦克步枪 I科技	为使步兵有效对抗更重型的装甲车辆，必须制造更小型的空心装药武器。	升级 对装甲杀伤： +25% 穿甲深度： +100%
	步兵装备 III	1942	170天	需要改良步兵装备 II科技	个人和部队使用的步兵武器，以及士兵所需的其他装备。更现代化的增加了大量的冲锋枪和反坦克步枪。	4 防御：34.0 突破： 5.0 对人员杀伤：12.0 对装甲杀伤： 2.0 最大速度：4.0 km/h 穿甲深度： 10.0 可靠性：80.0% 建造花费： 0.69
	改良步兵装备 III	1944	127天	需要步兵装备 III科技	步兵适用的单位或重武器，亦涵括其他所需杂项装备；包含突击步枪和反坦克火箭筒等先进武器；将原本小范围列装的武器普及。	升级 对人员杀伤： +10% 对人员杀伤： +5%

支援武器

支援武器，例如中型和重型机枪和迫击炮。这些科技为骑兵单位和所有类型的步兵单位的防御和突破提供了额外的加成。

图标（通用）	科技	年份	基础话费	先决条件	描述	统计
	支援武器 I	1918	127天	无	自动武器变得更轻便，冲锋枪亦已经被证明有效；手持式支援武器应当继续发展。	升级 防御： +5% 突破： +5% 防御： +2% 突破： +2% 防御： +3% 突破： +3%
	支援武器 II	1938	127天	需要支援武器 I科技	结合轻、重机枪两方面特点开发出的自动武器使我方士兵能多样化地进行使用。	升级 防御： +5% 突破： +5% 防御： +2% 突破： +2% 防御： +3% 突破： +3%
	支援武器 I I	1940	127天	需要支援武器 II科技	在保持、提高机枪可靠性同时亦可尝试提高其射速，以确保弹幕源源不绝，杀伤骇人。	升级 防御： +5% 突破： +5% 防御： +2% 突破： +2% 防御： +3% 突破： +3%
	支援武器 IV	1942	127天	需要支援武器 III科技	随着突击步枪的推广应用，发展能在任何环境下被任何兵种使用的可靠自动武器对现代军队已是一项当务之急。	升级 防御： +5% 突破： +5% 防御： +2% 突破： +2% 防御： +3% 突破： +3%

夜视仪

夜视仪使士兵即使在黑暗中也能看得到，抵消了部队夜间战斗时所受到的 -50% 惩罚中的一部分，并且在与那些没有这种装备的敌人拥有优势。

图标（通用）	科技	年份	基础花费	先决条件	描述	统计
	夜视仪 I	1943	212天	无	敌不见我，我可见敌是夜战的关键。红外线科技上的发明让我军得以列装夜视装备到部队，数量虽然有限。	全局数据 陆战夜战攻击： +10%
	夜视仪 II	1946	170天	需要夜视仪 I科技	早期红外瞄准镜虽意图供狙击手使用，但视野范围有限。随着便携性与视野范围同步改善，夜视装置将供更多部队夜战使用。	全局数据 陆战夜战攻击： +15%

机动步兵

摩托化步兵是步兵的更快、略硬的版本，但价格更高，可靠性更差。它代表的是配备了“软皮的——无装甲或略有装甲的——机动车辆（比如吉普车、卡车）”的步兵。它给步兵提供了更高的战略（部署至战区，即使地区基建只提供初等的战略机动）和作战（沿着前线移动）机动性，且适合于配合装甲部队。

摩托化科技可激活对机械化步兵的研究，机械化步兵使用越来越高级的载人装甲载具和步兵战车（比如装甲汽车和半履带车）。它们比摩托化步兵昂贵得多，初始时也更慢，但提供了更高的攻击，装甲厚度与装甲率，以及强大得多的战术机动性（交火时的机动，也就是“突破”属性）。机械化步兵应当升级以跟上更快的高级坦克。缺少坦克的机械化步兵在作为防御性的救火队时，要优于攻击性的部队（除非对抗的是相对较弱，跑得过的对手）。一般而言，正像现实中那样，机械化步兵最适合与装甲部队一起使用。

图标（通用）	科技	年份	基础 花费	先决条件	描述	统计
	摩托化装备	1936	170天		摩托化是陆军机械化的第一步。民用卡车可以很容易地被用来运输士兵、牵引火炮以及输送装备和补给。这极大地提高了步兵的战略机动能力，使其不再依赖于步行。	1 1 装甲率: 10.0% 最大速度: 12.0 km/h 可靠性: 80.0% 燃油消耗: 1.2 生产花费: 2.50 解锁 摩托化步兵 人力: 1200 训练时间: 90 恢复速度: 0.30 补给使用: 0.11 镇压: 2.2 组织度: 60 HP: 25.0 运输重量: 0.7
	自行火箭炮	1939	127 天	需要摩托化装备科技	多管火箭炮可以更迅速地将炮火送到目标地点，但比起传统火炮其准确度更低，装弹时间更长。通常被装备在卡车上发动攻击，在敌人发动还击前转移地点。	1 1 防御: 15.0 突破: 12.0 对人员杀伤: 36.0 对装甲杀伤: 1.0 穿甲深度: 2.0 可靠性: 80.0% 燃油使用: 0.1 建造花费: 12.0 解锁 自行火箭炮 人力: 500 训练时间: 120 恢复速度: 0.10 补给使用: 0.28 HP: 0.6 运输重量: 0.5
	机械化装备 I	1940	170 天	需要摩托化装备科技	机械化步兵是装备有装甲运兵车和步兵战车用于运输和战斗的步兵部队。机械化步兵与摩托化步兵的区别在于这些装甲车辆比起摩托化步兵的软面皮轮车辆（卡车或吉普等）一定程度上为步兵提供了免于敌方火力的保护。	2 1 防御: 26.0 突破: 4.0 装甲率: 60.0% 最大速度: 8.0 km/h 装甲厚度: 10.0 穿甲深度: 11.0 可靠性: 80.0% 燃油使用: 2.4 建造花费: 8.00 升级 装甲率: +100%
	机械化装备 II	1942	170 天	需要机械化装备 I科技	机械化步兵是装备有装甲运兵车和步兵战车用于运输和战斗的步兵部队。机械化步兵与摩托化步兵的区别在于这些装甲车辆比起摩托化步兵的软面皮轮车辆（卡车或吉普等）一定程度上为步兵提供了免于敌方火力的保护。	3 1 防御: 30.0 突破: 5.0 装甲率: 70.0% 最大速度: 10.0 km/h 装甲厚度: 15.0 穿甲深度: 16.0 可靠性: 80.0% 燃油使用: 2.4 建造花费: 10.00
	机械化装备 III	1944	255 天	需要机械化装备 II科技	机械化步兵是装备有装甲运兵车和步兵战车用于运输和战斗的步兵部队。机械化步兵与摩托化步兵的区别在于这些装甲车辆比起摩托化步兵的软面皮轮车辆（卡车或吉普等）一定程度上为步兵提供了免于敌方火力的保护。	4 1 防御: 34.0 突破: 6.0 装甲率: 80.0% 最大速度: 12.0 km/h 装甲厚度: 20.0 穿甲深度: 21.0 可靠性: 80.0% 燃油使用: 2.4 建造花费: 12.00 升级 对人员杀伤: +15% 对装甲杀伤: +15%
	Basic Amphibious Tractor	1941	170 days	Mechanized Equipment I	Amphibious Tractors, or Amtracs, allow Marines to be landed on a beach under armored protection. However, this comes at the cost of poor fuel efficiency.	2 1 Defense: 26.0 Breakthrough: 4.0 Hardness: 60.0% Max Speed: 7.0 km/h Armor: 10.0 Piercing: 11.0 Reliability: 80.0% Fuel Usage: 4.0 Production Cost: 8.00 Unlocks Amtrac Batallion Manpower: 1200 Training time: 120 Recovery Rate: 0.30 Soft Attack: 0.1 Hard Attack: 0.5 Supply use: 0.18 Suppression: 1.0 Organization: 60 HP: 30.0 Weight: 1.0
	Improved Amphibious Tractor	1943	170 days	Basic Amphibious Tractor	These Amtracs feature several improvements over the base version, such as rear loading ramp for easier unloading on the beach.	3 1 Defense: 30.0 Breakthrough: 5.0 Hardness: 70.0% Max Speed: 10.0 km/h Armor: 15.0 Piercing: 16.0 Reliability: 80.0% Fuel Usage: 4.0 Production Cost: 10.00
	Interwar Armored Car	1936	170 days	Motorized	Where previous armored cars were simply commercial models with thin steel plating, this model was designed from the ground up to carry armor and light armament.	2 Defense: 2.0 Breakthrough: 12.0 Hardness: 65.0% Soft Attack: 6.0 Hard Attack: 2.0 Max Speed: 9.0 km/h Armor: 3.0 Piercing: 6.0 Reliability: 80.0% Fuel Usage: 0.8 Production Cost: 4.00 Unlocks Armored Car Manpower: 500 Training time: 180 Recovery Rate: 0.30 Supply use: 0.14 Suppression: 2.5 Organization: 10 HP: 2.0 Weight: 0.8
	Basic Armored Car	1940	170 days	Interwar Armored Car	An improved internal layout and additional ammunition storage creates a more effective armored car.	2 Defense: 3.0 Breakthrough: 16.0 Hardness: 65.0% Soft Attack: 13.0 Hard Attack: 4.0 Max Speed: 12.0 km/h Armor: 10.0 Piercing: 8.0 Reliability: 80.0% Fuel Usage: 1.8 Production Cost: 6.00
	Improved Armored Car	1942	170 days	Basic Armored Car	Changes on the battlefield require a much heavier armament and thicker armor to defeat enemy light untis and survive to report back.	2 1 Defense: 5.0 Breakthrough: 28.0 Hardness: 70.0% Soft Attack: 16.0 Hard Attack: 8.0 Max Speed: 15.0 km/h Armor: 20.0 Piercing: 36.0 Reliability: 80.0% Fuel Usage: 1.8 Production Cost: 8.00
	Anti-Tank Armored Car	1942	85 days	Improved Armored Car	Our light mechanized units will come into contact with enemy tank forces at some point. Developing a special anti-tank variant would give them a fighting chance.	2 1 Defense: 6.0 Breakthrough: 28.0 Hardness: 70.0% Soft Attack: 12.0 Hard Attack: 14.0 Reconnaissance: 1.0 Max Speed: 16.0 km/h Armor: 20.0 Piercing: 62.0 Reliability: 80.0% Fuel Usage: 1.8 Production Cost: 9.00

Special forces

Back to Infantry research tree

In addition to regular, motorized, and mechanized infantry, there are three specialized infantry types (Marines, Mountaineers, and Paratroopers) that are useful in specific situations. They require standard infantry equipment.

These three types of specialized infantry types are known as Special Forces or SF (not to be confused with the army doctrine Superior Firepower). Special Forces have a Battalion cap for each country. This cap is the greater of either 24 battalions or 5% of your total battalions (excluding SF battalions) making up the rest of your divisions. Divisions cannot be changed, trained, given a different template or have their template adjusted if that would result in exceeding the SF cap. To increase the 24 SF battalion cap, you would have to exceed the 480 non-SF battalion breakeven point by 20 for each additional SF battalion. For example, you would need 500 non-SF battalions for 25 SF battalions, 520 non-SF battalions for 26 SF battalions, 540 non-SF battalions for 27 SF battalions, etc.

海军陆战队

Marines are specialized infantry trained to engage in wet terrain and perform amphibious invasions. They receive +30.0% attack in marshes, +40.0% attack when fighting over rivers, and +50.0% attack when engaging enemies during amphibious landings. Marine Divisions are very effective when supported by Engineer Companies.

Icon (generic)	Technology	Year	Base cost	Prerequisites	Description	Statistics
	Marines I	1936	170 days		Troops specializing in amphibious warfare are growing ever more indispensable. Improvised methods and equipment become things of the past as our naval infantry is supported by specialized landing craft and training.	Unlocks Marines Manpower: 1000 Training time: 120 Recovery Rate: 0.40 Breakthrough: 0.3 Supply use: 0.06 Suppression: 1.0 Organization: 70 HP: 20.0 Weight: 0.5
	Marines II	1939	127 days	Marines I	Amphibious warfare requires constant innovation. Improved logistical support and portable harbors can enable our marines to perform landings that may otherwise have been impossible.	Upgrades Soft attack: +5% Organization: +5
	Marines III	1943	170 days	Marines II	Marines can be more than just amphibious infantry. In the future, our marine corps will be among the most disciplined and organized special forces.	Upgrades Organization: +5

山地步兵

Mountaineers are specialized infantry that excel in maneuvering through and engaging in rough terrain. They receive +10.0% movement, +20.0% attack, and +5.0% defense in hills and +20.0% movement, 35.0% attack, and 10.0% defense in mountains.

Icon (generic)	Technology	Year	Base cost	Prerequisites	Description	Statistics
	Mountain Infantry I	1936	170 days		Combat in mountain ranges exposes troops to many perils, but sometimes cannot be avoided. We can minimize these risks by providing our soldiers with specialized training for this environment.	Unlocks Mountaineers Manpower: 1000 Training time: 120 Recovery Rate: 0.40 Breakthrough: 0.3 Supply use: 0.07 Suppression: 1.0 Organization: 70 HP: 20.0 Weight: 0.5
	Mountain Infantry II	1939	127 days	Mountain Infantry I	Going beyond survival, our forces can be trained to use mountains to their advantage. With light equipment and mule transports, they can maneuver in this terrain better than other infantry.	Upgrades Soft attack: +5% Organization: +5
	Mountain Infantry III	1943	170 days	Mountain Infantry II	Preparing for the most arduous mountain missions in high altitudes and low temperatures will require extraordinary training and discipline from our mountain troops.	Upgrades Organization: +5

伞兵

While they take longer to train and only have slightly better stats than normal Infantry, Paratroopers are the only type of unit that can be paradropped into the field, which they do via transport plane. This allows them to perform operations behind enemy lines and in locations where other units cannot easily reach. The AI will use paratroopers in battle, but never uses them for paradrops.

Icon (generic)	Technology	Year	Base cost	Prerequisites	Description	Statistics
	Paratroopers I	1936	170 days		By incorporating airborne forces into our army, we can make forced entries and position key troops in previously inaccessible areas, allowing for new tactical opportunities.	Unlocks Paratroopers Manpower: 1000 Training time: 150 Recovery Rate: 0.40 Supply use: 0.06 Suppression: 1.0 Organization: 70 HP: 22.0 Weight: 0.5
	Paratroopers II	1939	127 days	Paratroopers I	Transitioning from small operations with only a few paratroopers to larger airborne divisions paves way for massive airborne landings, taking these forces beyond a novelty to a natural part of warfare.	Upgrades Soft attack: +5% Organization: +5
	Paratroopers III	1943	170 days	Paratroops II	Learning to adapt paradrop operations according to weather, standardizing equipment such as jump boots and extended specialized training will minimize the confusion and risks involved in these dangerous missions.	Upgrades Organization: +5

Special Forces Concentration

Back to Infantry research tree

Special forces (marines, mountaineers, paratroopers) are trained and equipped for conditions that ordinary soldiers aren’t expected to excel in. The first tech will give them a boost to acclimatization speed. Afterwards, the tree splits. One option is to train your special forces harder, to improve their skills and their ability to fight for longer before having to be resupplied. The other option is to expand the special forces training programs to accept more recruits. Your special forces will be more numerous, but come with more drag and not quite as high speed. In the end though, they will still be elite forces and will be able to develop training to make them even more skilled in fighting in the harshest of conditions. Note: The maximum quantity of special forces is capped at 24 battalions or 5% of your fielded regular battalions (this limit can be increased by unlocking the Expanded Special Forces Program technology).

Special Forces research tree

Icon (generic)	Technology	Year	Base cost	Prerequisites	Description	Statistics
	Special Forces	1938	170 days		Unconventional fighting requires specialist training. We need to ensure that our troops are prepared and able to adapt to harsh conditions.	Upgrades Hot Acclimatization gain factor: +5% Cold Acclimatization gain factor: +5%
	Advanced Special Forces Training	1940	170 days	Special Forces	With extensive training, we can ensure that our special forces will be able to perform above and beyond that of normal men. Mutually exclusive with Expanded Special Forces Program.	Upgrades Division Training Time: +10% Defense: +5% Organization: +5
	Extreme Environment Training	1942	170 days	Advanced Special Forces Training	We need to be able to fight in the harshest of environments. With the right training and equipment, our troops will be able to fight in the most extreme conditions.	Upgrades Division Training Time: +10% Supply Grace: +48 hr Hot Acclimatization gain factor: +50% Cold Acclimatization gain factor: +50%
	Expanded Special Forces Program	1940	170 days	Special Forces	Special forces are able to perform missions that ordinary soldiers can not. We need to expand the training program to get more of our soldiers qualified. Mutually exclusive with Advanced Special Forces Training.	Upgrades Capacity Multiplier: +5% Division Training Time: -10%
	Survival Training	1942	170 days	Expanded Special Forces Program	Our special forces will often fight behind enemy lines and in short supply. We need to train them to endure harsh weather and fight with limited supplies.	Upgrades Hot Acclimatization gain factor: +20% Cold Acclimatization gain factor: +20% Out of Supply: -10%
	Elite Forces	1944	170 days	Survival Training	Only the best of the best will become special forces. The soldiers that make it through the training will be stronger. faster, and fight harder than anyone else.	Upgrades Hot Acclimatization gain factor: +20% Cold Acclimatization gain factor: +20% Supply Grace: +48 hr Soft Attack: +5% Organization: +5

科研 

海军

海军 · 海军学说

空军

空军 · 空军学说

工业

工程学 · 工业

战争 

机制 

事件与决议

事件 • 决议