I always find that the top countries on 1.5 maps are the countries with comitern doctrine. with all other doctrines i find that i have manpower shortages, but with comitern i have enough resources to research build and upgrade units. Comitern also usually has the largest armies on the map and if you survive a few days, you will find yourself with almost twice as many high-level units as other doctrines like axis. When you get this strong, you will be able to defeat almost any other doctrine.
I would suggest you make other doctrines better, or decrease the upkeep reductions, or comitern will be too good.
I would suggest you make other doctrines better, or decrease the upkeep reductions, or comitern will be too good.