This is sort of what happened in our last G40 game a few weeks ago. Maphead wanted to attack Nemestia, he uses a 1-2 punch to do this (brings fresh troops G2 then uses scandanavian troops G3, its a double drop of men without leaving the White Sea)
This didn’t work all that well because G1 he didn’t attack Russia’s land front. Attacking Russia G1 has problems because you are using every plane to help SZ 110 111 France Italy Yugo Tobruk…and don’t have any planes to spare to bolster eastern attacks. This means using tanks which get stuck in the advance zones and killed during Russia’s counterattack.
If you attack both nemestia/archangel and the eastern front (as usual) Russia has to recoil because you are threatening him (and with can openers) in so many areas, up north, in the center, and down south.
Since this wasn’t working too well, Maphead moved back to SZ 111 and grabbed men for Scotland. When you have Germany guys on Scotland, UK is in a pickle because every unit he uses to drive them off could get killed or stuck in Scotland (leaving London short). Again, Germany has the lion’s choice because after dropping the men on Scotland, he can grab another subsequent load of men, and attack you with x2 the ground units he can carry (plus all his air).
It didn’t work out well; I killed all but 1 of his Scotland men and retreated. With another turn of turtling (adding artillery, now I have like 12-16 men, 4 artillery, 1 armor, 1 mech, 5 AAA, 6 fighters …pretty much insurmountable) his attack was moot and his fleet was left out for the US and UK to tear apart.
So, I think map had 4-5 transports, any fewer and you cant make much of the double drop. Any later than G3 they aren’t going to have time to do any damage before the USA shows up.
The key to busting up UK is that Germany can attack round after round with fresh troops that it doesn’t have to build. The problem is that these are the exact troops that should be knocking on Moscow’s door around the same time.
The UK always has to worry about getting attacked, starting on UK1 and until UK 5 or so. Germany can build up or attack at any time. That means that you have to anticipate the possibility of him attacking you and having great luck, even when it seems less opportune for him to do that than attack Russia. As a result, the 6 men 1 fighter build is the most flexible over time because anything less can potentially get Sea Lioned. An early buy like that dissuades him (though it hardly makes Sea Lion impossible; its always possible).
I’d much rather buy at least 1 transport and 1 armor (for SA) and at least a few artillery rather than infantry in London (since they are more useful down the road), but this $17 leaves you with not enough $$$ for men AND a new fighter.