@inveratulo Do you not consider the number of Infantry you start with and value the extra attack point you get for free? Its not math in a vacuum. Look at your assets and buy what best fits and this depends on Nation, Projection, Income level, How close you are to taking his capital, etc. If you can risk a slow walk to Moscow as Germany, Or as UK you buy tanks so you can overrun Japan with a factory in Egypt and India. It depends on the situation alot more than creating units out of a vacuum.