Honestly, and no offense to you classic strategy folks, but I really see no need to augment the Germany navy. I see a lot of strategic arguements AGAINST augmenting the German fleet, though.
For instance. If you do not purchase a navy, England is extremely tempted to hit SZ 5, but all they have are expensive fighters and bombers. Those are fighters and bombers they will NOT have after the battle and will either have to rebuild (tough if they are down Africa) or do without (more likely, assuming Africa is gone.)
Meanwhile, Germany’s out a couple of submarines and a destroyer they most likely never would have used anyway. The transport is a shame, since it does add flexibility to your troop movements in Europe. But even the loss of that vessel isn’t going to make or break you.
On the flip side, with just a bid of 2 IPC to Germany, you are making 14 Infantry. That’s nearly double what Russia is putting down in Round 1, and added to your 8 armor you start with, is a significant punch to push on Russia early. Or, if you don’t have a build, 12 Infantry and 1 Artillery works nearly as well. Still 13 Units almost double Russia’s output that round (if they went all infantry, which I hardly see, so you most likely did double their unit production) and fairly safe.
After all, it’s going to take America 3 to 5 rounds to set up her infantry stacks. It will take England 3 to 5 rounds to get up to optimum production as well, assuming she wants to bring the fleet up from the Indian Ocean. That’s 3 to 5 rounds you have to maul Russia and keep her in the 150 IPC range on unit count while keeping the German unit count up in the upper 200s lower 300s. (Yes, roughly 2:1 IPC army values in your favor. Remember, I advocate a 3:1 ration if at all possible, but we’re talking 3 to 5 rounds, not a lot of time to get up to speed unless you’re NoMercy who, for some reason, whenever he plays me is capable of getting Germany to 50 IPC in 1 round, without cheating. :P )