Looking around, I see lots of factories springing up - but precious little production of the resources that factories will need to actually produce anything
A few scattered, low level rubber production buildings. Minimal steel production in most places. Even the cheap units are going to take a lot of resources.
Just an example of what a unit takes, a unit of Marines requires: 1000 uniforms, 75000 cash, 100,000 rubber, 120,000 steel, 25,000 rare metal, 150,000 lumber. As well as 25,000 ammo to fully arm them and food to feed them. Plus the 100,000 production points to produce all 1000 of them, with a minimum production time of 6 hours.
A unit of medium tanks takes 400 uniforms, 250,000 cash, 120,000 lumber, 2,000,000 steel, 200,000 rare metal, 200,000 rubber. As well as 60,000 ammo to fully arm them, food to feed them, and 45,000 fuel to fill their tanks. Plus the 188,900 production points to produce all 100 of them, with a minimum production time of 18 hours.
A light cruiser takes 500 uniforms, 300,000 cash, 1,000,000 lumber, 2,500,000 steel, 250,000 rare metal, 250,000 rubber. As well as 70,000 ammo to fully arm it, food to feed its crew, and 2,200,000 fuel to fill its tanks (it actually consumes 30k, the tank group above 22.5k - you just have to refuel the tanks a lot more often). Plus the 40,625 production points to produce it, with a minimum production time of 2 days.
One thing I'm not completely clear on is: How does the production points and production time interact? Does the ship only take 40,625 production points total, with it being unable to be produced in less than 2 days, or does it take 40,625 production points per hour for two days?