
The strongest soviet build in 1v1 imo is t2-t3 with lategame is2

, what I do is using Armored Assault commander, because I like it more(the one with radio intercept, is2, self-repair), this maybe works even better with Shock Rifle, but I find Radio intercept more useful in early game and vehicle self-repair really helps when you have multiple vehicles and only 1 or 2 engineers. I also can do without shocks by just gettin 2 more maxims instead of shock troopers.
usually the build order goes like this:
build 3 cons, then another engineer, build t2 and get a maxim, then get a t3 and an m5 Quad, 2 or 3 su76s and then keep building maxims and reinforcing them with m5 until you lock down the whole map. 2-3 Su76s will kill any okw building and will win vs JP4, panther or p4.
If game lasts till 13 cp, you can additionally call-in an is2.
I also veto Stalingrad, because maxims and su76s do better on open maps.