It is 100 progress to go from 0 to 1, 200 progress to go from 1 to 2, etc. You have a number of dockyards of varying sizes and shapes. so it is smaller than demanding that you build a full scale dockyard from scratch, but either one is still a substantial investment.How do dockyards work? For example going to L3, does that mean 300 progress to go from 0 to 3, or is it accumulating multiple stages (like 1 to 2 to 3)?
Ehhh, we have the greatest railroads in the world-and the real-world US routes didn't take off until like 1925.I do think we need to do the roads for economy and mobilization benefits.