I have tried the 10 inf buy myself once, but I noticed that it severely reduced my flexibility. I bought 9 transports the second turn, but since I had no navy after sending my battleship to 111, it made landing in England a for sure loss of those transports once US entered the war (they bought several bombers in preparation for sea-lion).
From what I gathered his plan is to destroy the main fleet of the Royal Navy (battleships), and threaten the UK directly w/German navy builds. He’s looking for UK to either turtle up, or be very bold (scramble, which could be devastating to them) and maybe help out Italy along the way. He’s trying to limit the capabilities of the UK for the first few turns, and maybe do some convoy or SBR if the opportunity arises. He wants to proceed from there with a full scale ground attack to the east, while keeping his options open for Sea lion if UK does something stupid.
I know that is a lot of navy for the Germans to buy right off the bat, but it can be used to land in the Russian north, move out into the Atlantic temporarily, even send some ships to the Med if he wants. I say if your going to buy navy for the Germans, then don’t pussyfoot around. If your going to buy an AC, then its been my experience you need a dd to help protect the German fleet so it can move out.
Don’t get me wrong, I have went over board w/navy builds for the Germans that has cost me games (stalls your Barbarossa). You can’t continue down that path (other then a few subs), but it will force the allies to over purchase navy for the Europe side because of your capabilities. It can work as a distraction, or get the US to split income between E & P (a US spiting income evenly generally means it is weak on both sides).
This is exactly what my strategy entails. If the UK does scramble, then you have a much easier time with sea-lion, since you can do an easy land in Scotland on G3 (after convoy disrupting on G2 for 8 IPCS) and then attack on G4. Plus, in the battle for London, I would gladly exchange some of my German air power for the UK’s, as that is their only real saving grace.
If I don’t intend on doing Sea-Lion, I can easily convoy and SBR for two-three turns, which for me has always helped out Italy since England still has to prepare for sea-lion, leaving little money for South Africa or any extra planes to go to the Med.
Also, I send subs after both SZ 106 and SZ 109 so I can kill those British transports. I just can’t stand leaving Britain with any transports to make landings. What often happens is if the Transport in SZ 109 is left, they plop a couple of infantry down on Holland/Belgium, which is usually left empty from attacking Normandy and France. It may only be a small force that is easily destroyed, but it irritates me having to do that, plus possibly losing more German land units.
Since most of my planes have to land in Holland/Belgium, this is not a problem. I just move some AA from West Germany there to prevent losing any planes in case UK suicides.