Not much sense to Germany or Russia building ICs in Revised. Germany already starts with the ability to make 16 units a turn–that’s all you need. The only interesting places I’ve seen Germany place an IC are Western Europe (for naval strats) and Ukraine (to help aggressive stack there). And I’d argue stacking Ukraine is better achieved by simply buying more land units and moving em out.
ICs are expensive enough as it is–no need to buy em w/o reason.