Just real quick to PP error 3. If Germany puts their battleship in sz 17 to take Egypt, one possible response is to take the UK bomber and sink the German battleship and transport from the air. Use the remaining Indian ocean fleet to hit 61 and kill the second Japanese transport. Sinking the German med fleet makes India somewhat less critical to the Allied warplan, as it allows you to hold Africa and push across the Med.
1 fighter + 1 bomber vs 1 battleship is 60% odds to the attacker. There is a 20% chance of a draw, but only 20% chance for the defender to actually win. That means only a 1/5 chance that the German battleship prevails. Considering the strategic advantage of locking down the med on UK1, this is a strong trade for Allies. The bomber can land in Transjordan.
What’s more, if Germany fails to destroy the UK fighter in Egypt and take the Canal, then their African ambitions are royally screwed. This comes down to the first round of combat, meaning that G has to put a lot on the line. If UK is able to bring a second fighter or naval fodder unit into their counter attack against the German battleship, their odds of success shoot back up into the 90%+ range.
As for the odds numbers you posted, those odds are a bit off. If Germany brings the bomber (and they must for an attack on Egypt to work!) that is…
Germany: 2 inf 2 tanks and 1 bomber vs UK: 1 inf 1 art 1 tank 1 fighter.
a little over 70% odds to the German attacker.
A Russian fighter in Egypt drops these odds down to about 30% for the German attacker.
It’s possible you were including the battleship bombardment in the calc, but the UK destroyer in sz 17 negates this. So Egypt is a very long shot for Germany if the Russians send fighter support. And even if the Russians don’t, there are still a viable way for UK to punish Axis for a G1 hit on Egypt, namely by killing their Med Battleship. ;)
The Russian hit on sz5 is high risk. I would be careful getting too used to that move, as it can burn you really hard when it fails.
One other quick point about leaving 1 infantry behind. I would caution against this on R1, in any territory that could be cleared by German coastal bombardment. You’re better off pulling back and saving that 3 ipcs TUV in infantry for counter attacks on R2, rather than leaving them behind for a weak defense. They will get just smoked on G1, especially if left in Karelia. The Karelia factory already blocks German tanks, so inf isn’t necessary here.