You do realize you you need tBy the time you are building your 2nd gren squad soviets can build 3 cons (they might even have it out at that point). Mmm... the resources are given to you by the game, so for both ost and sovs the first building is essentially free m8. it's not like usf/ukf who are not given enough resources to tech at start. That is some serious levels of bias.
Yes cons CAN outnumber grens if the Soviet player doesn't tech up to support them with anything. By that metric all other factions can out number grens for the seconds it takes to build Ost t1
Also Ost starts with more manpower if memory serves as well as having a cheaper first building. And the buildings, while cheaper than starting resources still cost resources and impact build orders.
But yes you are correct. For 15 seconds there can be more cons than grens on the field. Good job. Nailed it.