Keep it simple, stupid. The Soviets biggest advantage is the fact that they have almost unlimited manpower and a huge IC base to draw on. They can easily churn out enough infantry divisions to make a Maginot Line out of human bodies. From the start, you need to ensure that you're producing infantry divisions at the maximum rate you can while still keeping every thing else relatively in order.
My first Soviet game, I was too inexperienced to know this and so, my 6 divisions in each Germany-Soviet border provinces were basically overrun by the German war machine.
Anyways... my latest German campaign (I keep starting new ones every time I realize a big mistake I made
) has gone extremely well. As of January 1st, 1940 (which you may recall was my date for invading France in my last campaign) the Vichy event has already been triggered and all of France is under my domination. I ensured that Nationalist Spain won the SCW and as such the Nationalists were a gigantic help in the war. They didn't do much in the way of destroying divisions, but they took giant chunks of land out of southern France... so much so that Vichy France is about half the size as it should be (in mainland Europe anyways. They still have all the African territory)
Poland was completely annexed by September 10th. That taught me the benefits of HQ's
. I figured that I would cool down in between Poland and France, but because I had already massed 45 divisions on the border of the Netherlands, and France pushed into the weakly-defended Freiburg, I figured what the hell, and invaded the Netherlands on September 15th, '39. My 10 Panzer divisions I had stationed in Munster helped immensely. So I overran the Netherlands within a week and then pressed into Belgium.
Meanwhile, I still had the bulk (over 100 divisions) of my military moving west out of Poland, and Freiburg had been taken, leaving Strasbourg defended by one measly division. I still didn't have enough troops on the border, however.
So while my forces were heading west from Poland, I ensured that Belgium and the Netherlands were completely annihilated... which they were. Belgium gave me some resistance as they had a habit of sneaking into provinces I had left ungarrisoned.
Skip forward a few weeks to when my forces arrived. Freiburg and Friedrich-Shafen were in French hands, with 26 divisions in Friedrich and none in Freiburg. I had stationed 30 divisions of my Eastern veterans in Saarbrucken, who invaded the measly-defended Strasbourg. Strasbourg, though only defended by one single division, held for about a WEEK. Meanwhile, I had a force of 74 divisions seize Freiburg, which effectively encircled the bulk of French power, the 26 divisions in Friedrich. I assaulted them with my total of 87 divisions and totally overran them. 13 divisions captured the territory itself whereas the other 74 went to support the attack on Strasbourg, which eventually broke the French forces. The 74 units then crossed the river into Mulhouse and broke the Maginot line there, as well.
My forces had finished in Belgium and I now had armoured divisions backed up by infantry pushing down through Calais and Dieppe and banking east to link up with my main force, which was currently pushing into Reims. It was then that I realized that Nationalist Spain had pushed literally into Tours and Chateroux. I took Paris, moved and took Metz, finally ending the Maginot line. After seizing Amiens and Compeigne, the Vichy event occurred. I FINALLY got around to annexing Luxembourg.
So here I am in January of '40 with 164 divisions sitting in Berlin. I'm planning a move towards the Soviet border to basically plant a huge mass of troops there and eventually Blitzkrieg the hell out of the Bolsheviks.
I'm pleased that my invasion finally went well. The biggest disappointment (and it was a big one, at that) was that I lost 10+ air divisions when the Belgian resistance captured my unguarded airbase in Essen. Unfortunate, but with Aircraft, Vehicle and Small Arms assembly lines all researched, I won't be down for long.
Now for my latest question XD
What does one have to do to get Finland, Japan, Romania into the Axis? I've got Italy now that I control France, and Italy has annexed Yugoslavia and Greece. Japan's belligerance is almost as high as mine. =p The Winter War is over already.