i dont know what are you talking about, comintern its too weak early but a monster late, leave a comintern grow and eventually they will become unstopable, the key with comintern its more production building, upgrade the building rather than upgrade units and just keep spamming troops, do not upgrade a unit unless its 2 or 3 level outdate.
on research go for variety of units instead of focus on 2 or 3 units, if you upgrade a unit too much the production time will be very slow, and what you want is numbers so avoid upgrade units if this mean you cant spam them very fast.
you can easily have 700 units at day 20 on a world map, if you cant compensate the increase of hp and damage of a upgraded unit, then spam more units, overstack them to get more hp.their damage efficiency will go down slower, so in very long battles your army will end having more attack than the enemy.
also another thing with comintern its go for artillery and defense units, most of "comintern player" just avoid melee, they micromanage the artillery to deal full damage, and do hit & run tactics, air its just a defensive weapon against fast incursions. rairoad guns are your best friend, 1 its not a big deal, 10 per every stack its monstruous, remember to overstack your units, its not a big deal losing eficiency, who cares about eficiency when nobody ever deal to get near your army, if the enemy use fast units, remember the penalty of 50% movement speed on enemy territory, build infraestructures, have another big army behind your fist big army.
on early you should stay defensive, your economy do not depend on expanding, just wait to acumulate more unit to overwelm the enemy and attack them at that moment.
soo more time you leave a comintern player accumulate troops, they will become more and more stronger. its like cancer, the key like every other doctrine its know how to use them properly, and comintern its tremendous using them properly.
