Here is a Germany specific strategy, 1941, NOs on, Techs off or ignored.
G1build(31): 1 Carrier(land 2 Fighters on it), 2 Transports, 1 Infantry
G1attack: Take Baltic States, East Poland, and Ukraine. Use transports to move an additional Infantry and Artillery to Baltic States and Ukraine. Make sure that all Tanks are in range of Karelia, and that at least 3 Tanks are in Baltic States or otherwise near water. Use Subs, Fighters, and Bombers to wipe out all British Naval units save the Destroyer/Transport pair. Use African units (2 Infantry, 1 Tank) defensively only, to protect Libya and Algeria.
G2build(45): 1 Transport, 6 Infantry, 2 Artillery, 1 Cruiser
G2attack: If you can kill Britain with 3 Infantry/Tanks, a Cruiser, and your Airforce, DO IT. If Britain to tough, hit Karelia, transporting as many Infantry/Artillery as possible there. Retain control of the 1st NO as well, using your air force ideally.
G3build(52): 8 Tanks, 1 Cruiser
G3attack: If you can kill Britain with 4 Infantry/Tanks, 2 Cruisers, and your Airforce, DO IT. If Britain to tough, ship the G2 Build from Germany to Karelia. Retain control of the 1st NO as well, using your air force ideally.
G4build(52): 2 Tanks(in Karelia), 3 Bombers, 2 Infantry
G4attack: Retain control of the 1st NO as well, using your air force ideally. Move the 8 Tanks to Baltic States, and advance your Karelia forces to Belorussia, capturing Archangel as well if possible
G5build(55): ???, dunno
G5attack: Forget Britain, you should be able to hit Moscow with your builds from G2, G3, G4, and a good portion of your starting forces
In short, threaten both Britain and Russia at once with the Baltic Fleet. The transports can be used to either to attack Britain, or to allow you to shorten the distance Infantry need to travel, allowing you to build Infantry on Turn X, Tanks the on X+1, Bombers on X+2, and have them all reach Moscow on X+3.
First of all, the fleet idea doesnt work. Ive tried it. All GB has to do is build 5 subs and 1-2 fighters and blow your fleet out of da water. when your fleet is gone, your russian stratagy falls imediatly. Russia reenforces Karelia and your lack of tanks (because of your 1 turn purchases) becomes a problem. so you are left with a smaller army then russia’s and no fleet. Figure out how dat works.