[Minimum Armor for Cruisers Early Eras?]

I'm just starting to learn the game so don't have any standard practices yet formed.  But I'll try to remember to come back to this when I do form some, if they don't radically change the way things are currently working soon.

[Campaign: Please please add individual Shipyards/Slipways instead of an abstracted "Shipyard Size"]

I too concur with this suggestion.

[Campaign question.]

4 minutes ago, SiWi said:

well.

You build ships and put them in ports.

Base on their range and the range of enemy ships the game will generate battles.

In those battles, damaging or sinking enemy warship give Victory points. If you gather enough relative to you enemies, the enemy will search for peace.

Meanwhile both side will try to sink enemy transports or blockade the enemy. Which also generate VP and weakens the enemy economy. 

Yeah this much I figured out, was looking for more detailed information.  Like how much more VP are needed to win and such, how long the campaign lasts before victory is declared.

[To check game weight limits, I tried to build real ships (like Yamato etc) All way too heavy.]

I was noticing this too, struggling to build what I feel are reasonably protected ships and having no tonnage to do anything but make an armored target or skimping on armor and having room for guns and ammo.

[Campaign question.]

How exactly does this work?  I've got some basic idea of things but is there anything concrete about how the campaign rules work and such?