Variant

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Variants may be created of tanks, tank-based weapons, airplanes and ships using experience to upgrade specific attributes. Sometimes a small improvement in speed, protection, or firepower can make a significant difference in the field. Variants are expensive in XP, so their use should take into account the expected benefit, production volume, and service lifetime of the variant in deciding where to commit these resources. Well-designed variant can easily exceed capabilities of models higher in the tech-tree, while being accessible years before and without additional research. This is especially important for capital ships, as they take a very long time to be build and there are large year-gaps between models. Variants of equipment researched under specific designer company stack their bonuses, being able to create extremely potent hardware.

Upgrading[edit]

Each upgrade may be selected up to 5 times, and may be made at different times. Existing equipment upgrades may be viewed in the Production screen. Upgrades in one area may reduce performance in another area - e..g., complexity reducing reliability or slower speed due to increased weight, so it is worthwhile to experiment with the balancing of upgrades before saving a variant. Note that land units may use maintenance support companies that increase reliability for equipment in that division, and also that equipment stats and performance may also be affected by government staff with particular skills that provide modifiers.

Armored units[edit]

The first upgrade level costs 10 XP. Each subsequent level costs 5 XP more than the last. It therefore costs 1150 XP to fully upgrade a model with 20 upgrades.

Upgrade Units Bonuses Penalties
Armor All +5% Armor -2% Speed
-5% Reliability
Engine All +4% Speed
Reliability All +10% Reliability
Tank Gun Tank +3% Soft Attack
+10% Hard Attack
+5% Piercing
-2% Speed
-5% Reliability
AA Gun Self-propelled AA +15% Air Attack -2% Speed
-5% Reliability
AT Gun Tank destroyer +10% Soft Attack
+10% Hard Attack
+5% Piercing
-2% Speed
-5% Reliability
Artillery Self-propelled artillery +3% Soft Attack -2% Speed
-5% Reliability

Naval[edit]

The first upgrade level costs 25 XP. Each subsequent level costs 5 XP more than the last. It therefore costs 1450 XP to fully upgrade a model.

Destroyer
Upgrade Bonuses Penalties
Engine +3% Speed
+5% Operating Range
+2% Evasion
-0.5% Reliability
ASW +4% Sub Detection
+4% Depth Charge
-1% Torpedo Attack
Torpedo +7.5% Torpedo Attack -1% Speed
-1% Operating Range
Anti-Air +5% Anti-Air -1% Speed
Light Cruiser
Upgrade Bonuses Penalties
Reliability +1.5% Reliability -4% Operating Range
Engine +3% Speed
+5% Operating Range
+2% Evasion
-0.5% Reliability
Gun +4% Gun Attack
+3% Gun Range
+5% Piercing
+5% Shore Bombardment
-1% Speed
-0.5% Reliability
Anti-Air +5% Anti-Air -1% Speed
Capital Ship
Upgrade Bonuses Penalties
Reliability +1.5% Reliability -4% Operating Range
Engine +3% Speed
+5% Operating Range
+2% Evasion
-0.5% Reliability
Gun +4% Gun Attack
+3% Gun Range
+5% Piercing
+5% Shore Bombardment
-1% Speed
-0.5% Reliability
Armor +3% Armor -1% Speed
-1% Reliability
Carrier
Upgrade Bonuses Penalties
Reliability +1.5% Reliability -4% Operating Range
Engine +3% Speed
+5% Operating Range
+2% Evasion
-0.5% Reliability
Deck Space +7.5% Deck Space -5% Armor
Armor +10% Armor -4% Deck Space
Submarine
Upgrade Bonuses Penalties
Reliability +1.5% Reliability -4% Operating Range
Engine +5% Speed
+5% Operating Range
+3% Evasion
+5% Submerged Visibility
-0.5% Reliability
Torpedo +4% Torpedo Attack -2% Speed
Stealth -5% Submerged Visibility -2% Speed

Air[edit]

The first upgrade level costs 25 XP. Each subsequent level costs 5 XP more than the last. It therefore costs 1450 XP to fully upgrade a model.

Fighter / Heavy Fighter Carrier Fighter
Upgrade Bonuses Penalties Upgrade Bonuses Penalties
Reliability +10% Reliability Reliability +10% Reliability
Engine +2% Speed
+5% Agility
Engine +2% Speed
+5%
Range +10% Range -10% Reliability Range +15% Range -10% Reliability
Weapons +10% Air Attack -1% Speed
-10% Reliability
-5% Agility
Weapons +10% Air Attack -1% Speed
-15% Reliability
-5% Agility
CAS Carrier CAS
Upgrade Bonuses Penalties Upgrade Bonuses Penalties
Reliability +10% Reliability Reliability +10% Reliability
Engine +2% Speed
+5% Agility
Engine +2% Speed
+5%
Range +10% Range -10% Reliability Range +15% Range -10% Reliability
Weapons +2% Air Attack
+5% Ground Attack
-10% Reliability
-5% Agility
Weapons +2% Air Attack
+5% Ground Attack
-10% Reliability
-5% Agility
Naval Bomber Carrier Naval Bomber
Upgrade Bonuses Penalties Upgrade Bonuses Penalties
Reliability +10% Reliability Reliability +10% Reliability
Engine +2% Speed
+5% Agility
Engine +2% Speed
+5%
Range +10% Range -10% Reliability Range +15% Range -10% Reliability
Weapons +5% Naval Attack -10% Reliability Weapons +5% Naval Attack -15% Reliability
Tactical Bomber
Upgrade Bonuses Penalties
Reliability +10% Reliability
Engine +2% Speed
+5% Agility
Range +10% Range -10% Reliability
Weapons +2% Bombing
+2% Ground Attack
-10% Reliability
-5% Agility
Strategic Bomber
Upgrade Bonuses Penalties
Reliability +10% Reliability
Engine +2% Speed
+5% Agility
Range +10% Range -10% Reliability
Weapons +5% Bombing -10% Reliability
-5% Range