@SuperbattleshipYamato
Let them move into the med. US has to truck transports in a chain which would need to be protected at Gibraltar AND in the med. A large German fleet full of carriers just dumps the air power to the med. Fighters can reach from sz112 to the Italian coast. They can’t cover both.
If both Germany and Italy invest heavily in fleets from the start the allies have to push in with their fleets to protect the transports exposing a weakness in the supply chain. With heavy German naval power you have the flexibility to cut that off and the allies can’t push or sustain an attack. They get one or two dumps of troops but not enough to keep the beach head. It will fail without continuous reinforcements.
It’s minimal investment for Germany to build that navy. They start with most the fighters. USA has to build from zero. If the axis remove the transport protection that buys them 3-4 turns until they face another significant threat via invasion. That’s enough time to make another second push on Russia. They’ll make no more money because Japan ate up Central Asia and is bombing their factories to oblivion from Khazikstan.
Give it a try, plus when allies push their navy into the med Germany can just convoy the hell out of UK freely. I’m telling you go HARD navy with Germany.
You gonna spend all that money on German land units on the continent that are just gonna die. Allies can just pick the weakest part. Spend it on ships and fighters instead. Production wise it’s hard to keep up with just a ground war.
Trust me I’ve been playing with this for years and I can’t find a reliable way to push it. Best I can do is find 40% odds victory to establish the beach head with allies and those are not good odds to stake the game on. Fail at that and it’s over, there’s no coming back. Allies get one shot at it.