When best to build infrastructure before building factories on it?

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Meglok

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From work that @Secret Master did the benefit vs cost in time is about 5 factory spots for MIC or NIC, depending on your industrial techs. If I am remembering the thread correctly.
 

Dalwin

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I agree that is a reasonable rule of thumb, but one must also consider how soon you expect to be going to war. If you need to rush your military buildup the extra infrastructure might not be the best investment. If you expect to have plenty of time before you either start a war or are forced into one then you can more easily justify the time spent doing so.

Another consideration is how many good provinces do you have. Your need for infra versus going straight to industry is greatly affected by the overall layout of your country rather than trying to judge it from a single state.

A third thing I like to consider when making the decision is synchronizing my industrial development with key technological advances. If my game plan involves cranking out lots of medium tanks for example, the factories I build before those are researched either have to do something else or they will suffer a loss in efficiency when I convert them. That might give me a window early when knocking out a few levels if infrastructure in the right spots makes sense. On the other hand, if one is gambling as the German did in our current game, and going with an early Barbarossa spearheaded by lots of light tanks, then any infra at all instead of going straight to factories would have been a mistake.

In this like so many things the key is to have a plan and then make the details fit into that plan instead of trying to perfect the details and hoping that a plan forms around them.
 

Iskulya

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As in, one level of infrastructure per 5 empty factory slots?

If you've got particularly low infrastructure in some high slot areas, is it worth investing more than one or two?

I haven't played the game yet since the patch, but I've been trying to make some good rules of thumb. A lot of it seems country specific.

As the US, should I be I be focusing on infrastructure and dockyards until partial mobilization/war economy?

What about for the Soviets, focus on infra and CIC in your big cities? The question for the soviets seems particularly crucial given the lack of high slot states outside the vulnerable western regions.

I'm also wondering what some good infrastructure/industry strategies are for low industry, low infrastructure countries like India and China are. I saw the number crunching thread last month but that stuff makes my eyes glaze over. I just like having some good rules of thumb, which aren't strict guidelines but can be more or less adjusted to fit the situation.

I've heard someone say that you get diminishing returns after infrastructure 8, so it's not really worth going past that unless you plan on stacking synth refineries or something like that?
 

Celdur

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Its not diminishing returns because you are no longer benefiting its more with the fact that going from infra 8-10 is less effective than 3-5 in another province. But, more Infra will always be better for building IC so in the really big provinces of +10 or +12, i recommend going all the way to 10 infra, in general always go 10 infra if you have the time to spare.

There are usually very few +6 or +8 provinces in any country, just focus on a couple of those and build infra and CIC there, MIC can be build anywhere because of the bonus when changing laws.

As SU, focus on the ones in Siberia and you'll be fine.