Jaycee
03.12.04, 13:54
Transport Capacity (TC), Supply Efficiency (SE) and Effective Supply Efficiency (ESE)
TC and SE
Transport Capacity is a nation’s ability to transport supplies and troops by means of railways, barges, motorized transport and other means of transport. It’s directly dependant on a nation’s industrial capacity. Technological advances modify the transport capacity beyond the basic value.
The supply efficiency is then calculated by dividing the actual transport capacity through the current transport load. The transport load consists of:
Each divisions daily fuel and supply consumption (naval and air units are factored in at a reduced rate). Note: Moving and fighting units consume more fuel and supplies.
occupied provinces transport demand
Strategic Redeploy load
Offensive Operations load
Partisan Activity load
Example: a nation with 10 ICs has a transport capacity of 15. Its 14 infantry divisions consume 1 supply daily (14 points of transport load). The nation also is at war and occupies two enemy provinces (6 points of transport load). The supply efficiency is thus 15 TC/ 20 transport load) = 75%.
SE and ESE
The provincial infrastructure and supply efficiency result in the Effective Supply Efficiency by calculating the mean of the two.
Example: A nations supply efficiency is 75 %, one of the nations divisions is located in a 40 % infrastructure province. The division will then be supplied at 57, 5 % Effective supply efficiency.
ESE effects the following.
The speed of regaining organisation on a unit.
The movement speed of the unit.
It also has a profound effect on combat performance by adding a combat bonus/malus.
Offensives
The supply efficiency of single units/formations can be temporarily boosted by setting it on offensive supply: by paying 60 days worth of daily supply and fuel consumption a unit will have +50% supply efficiency for a full month.
What does the betas say?
King - "I tell you it can be a real pain. As Nationalist China I drove the Japanese back to Korea only to see myself, in turn, driven back as my logistics failed. It makes an interesting additional problem for a player. Especailly if you like invading countries, it's a lot easier to supply your troops at home. So if fancy yourself as War mongerer, don't neglect your logistics techs."
Pkunzipper - "Some time ago there was a discussion on the IRC beta channel about the best new feature in HOI2... TC was my choice, since it brings really a whole new level of depth in the game... So now no country will be able to expand too much without to invest enough IC in order to keep under control partisan activity (that is one of the most dangerous TC killer) and to improve its own TC. Failing to keep high TC value means that your troops will be easily beaten and that you have to spend a lot more of supplies to mantain them!"
Peter Ebbesen - "The way ESE is calculated means that a few well-entrenched units in a high infrastructure province can potentially hold out much longer than a larger number of units in a low infrastructure province, as they will reinforce and regain organisation quicker, and repairs fortifications, AA, etc rapidly - all very useful to remember for the player who wants to be on the strategic offensive but tactical defensive. However, beyond strategical deployment, beyond even reorganisation, the chief reason that you want to manage your TC well is that land units move at a crawl with low ESE, and you really, really do not want your troops to move significantly slower than the opposition if you are evenly matched or you will have your forces pocketed and they will be defeated in detail."
Zerli - "Anyway, TC is a concern even for Germany, and for Japan it is absolutely crucial. You have to plan your fight in advance, you have to hoard supplies and fuel, and you must be cautious with commiting to a large offensive due to prohibitive cost in TC. And this is what I really like in HoI 2, the system absolutely rocks. It rewards planning and forethought and leaves mega-panzer-stack rushers to scratch their head in confusion when their uberstacks are slowly bled to death by inferior enemy, one TC at a time."
NickMP - "I've been playing wargames for 40 years, and TC/ESE seems to me the best abstracted simulation of supply and logistics that I've seen. It's subtle and really rewards intelligent play."
TC and SE
Transport Capacity is a nation’s ability to transport supplies and troops by means of railways, barges, motorized transport and other means of transport. It’s directly dependant on a nation’s industrial capacity. Technological advances modify the transport capacity beyond the basic value.
The supply efficiency is then calculated by dividing the actual transport capacity through the current transport load. The transport load consists of:
Each divisions daily fuel and supply consumption (naval and air units are factored in at a reduced rate). Note: Moving and fighting units consume more fuel and supplies.
occupied provinces transport demand
Strategic Redeploy load
Offensive Operations load
Partisan Activity load
Example: a nation with 10 ICs has a transport capacity of 15. Its 14 infantry divisions consume 1 supply daily (14 points of transport load). The nation also is at war and occupies two enemy provinces (6 points of transport load). The supply efficiency is thus 15 TC/ 20 transport load) = 75%.
SE and ESE
The provincial infrastructure and supply efficiency result in the Effective Supply Efficiency by calculating the mean of the two.
Example: A nations supply efficiency is 75 %, one of the nations divisions is located in a 40 % infrastructure province. The division will then be supplied at 57, 5 % Effective supply efficiency.
ESE effects the following.
The speed of regaining organisation on a unit.
The movement speed of the unit.
It also has a profound effect on combat performance by adding a combat bonus/malus.
Offensives
The supply efficiency of single units/formations can be temporarily boosted by setting it on offensive supply: by paying 60 days worth of daily supply and fuel consumption a unit will have +50% supply efficiency for a full month.
What does the betas say?
King - "I tell you it can be a real pain. As Nationalist China I drove the Japanese back to Korea only to see myself, in turn, driven back as my logistics failed. It makes an interesting additional problem for a player. Especailly if you like invading countries, it's a lot easier to supply your troops at home. So if fancy yourself as War mongerer, don't neglect your logistics techs."
Pkunzipper - "Some time ago there was a discussion on the IRC beta channel about the best new feature in HOI2... TC was my choice, since it brings really a whole new level of depth in the game... So now no country will be able to expand too much without to invest enough IC in order to keep under control partisan activity (that is one of the most dangerous TC killer) and to improve its own TC. Failing to keep high TC value means that your troops will be easily beaten and that you have to spend a lot more of supplies to mantain them!"
Peter Ebbesen - "The way ESE is calculated means that a few well-entrenched units in a high infrastructure province can potentially hold out much longer than a larger number of units in a low infrastructure province, as they will reinforce and regain organisation quicker, and repairs fortifications, AA, etc rapidly - all very useful to remember for the player who wants to be on the strategic offensive but tactical defensive. However, beyond strategical deployment, beyond even reorganisation, the chief reason that you want to manage your TC well is that land units move at a crawl with low ESE, and you really, really do not want your troops to move significantly slower than the opposition if you are evenly matched or you will have your forces pocketed and they will be defeated in detail."
Zerli - "Anyway, TC is a concern even for Germany, and for Japan it is absolutely crucial. You have to plan your fight in advance, you have to hoard supplies and fuel, and you must be cautious with commiting to a large offensive due to prohibitive cost in TC. And this is what I really like in HoI 2, the system absolutely rocks. It rewards planning and forethought and leaves mega-panzer-stack rushers to scratch their head in confusion when their uberstacks are slowly bled to death by inferior enemy, one TC at a time."
NickMP - "I've been playing wargames for 40 years, and TC/ESE seems to me the best abstracted simulation of supply and logistics that I've seen. It's subtle and really rewards intelligent play."