The Diocletian
Fire Fly
Not as good as blizzrd or Jusos. I'll shadow your game.
EDIT: What version is it? I CtD'ed trying to run your save.
Anyways, since I can't run your save.
Don't delay Liberalism. 1600+ Liberalism is very late and you run the risk of having an opposing civ beat you to it.
Set Espionage to Vikings or China, they usually go for Military Tradition early, and you should (barring a few circumstances), not tech it yourself.
Capitulating Russia should be a vassal priority. Get them while they're weak, then feed them Settlers.
Turtling till Tanks is a good idea; also make sure you have many Settlers and escorts available in spots where you'll plan to claim land.
Don't settle them until you're around 18-20% of the land limit, then pump culture.
1.11, sorry. Are you on the SVN?
By waiting for Liberalism till the last moment, I meant that I fully intend to let someone else have it. The only civ with Education is China, who is discouraged from teching Liberalism anyways.
Already teched Mil Trad.

I would go and capitulate Russia, but they're kinda... dead. Mongols basically crippled them, and I'd wager any attempt to capitulate them would just have resulted in them collapsing.
Tachy, Turkey has the Ukraine and most of Ante-Ural region, except Moscow.
Perhaps some visual aids will help:
Relations screen:
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Tech screen:
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My empire, 12 cities total:
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The Grand "Russian" Empire:
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