Russia has an interesting solution. With much equiptment design an advanced model and a simplified monkey model. The monkey model is used for 1) export (to avo

Russia has an interesting solution. With much equiptment design an advanced model and a simplified monkey model. The monkey model is used for 1) export (to avoid sharing tech) and 2) so they have a verison they can manufacture quickly and cheaply in war. This under the theory wars tend to be won very quickly, or via attrition. So if both sides fail to blitz each other, Russia is well placed to churn out machinery fast for the attrition component. For the same reason they stack their army with officers (or used to) giving them the ability to bring in civilians and split officers into multiple groups if they want to ramp up man-power fast.