Offtopic: I don't know about CFC's general policy on reviving old threads, but I assume you don't mind?
Thanks for an awesome scenario! I've played older versions of this for a long time, and thought I'd say thanks and share my gaming experieces. I've played on various difficulties (regent and upwards) and nations and although I haven't finished a scenario (eliminated all enemies/let timer run out) I must have spent hundreds of hours in this scenario.
Germany (first attempt): My strategy was to conquer all of Europe and keep friendly terms with Soviets, and it looked like it was going well. GB and US had total sea domination though, but kept trying to enter the mediterrenean, giving me ample opportunities to bomb them from Spain. I had prepared to invade England when the Soviets decided to attack. Massive stacks of T-34s rolled in, and despite my best effort there was no way to stop them. Soviet soon took all my eastern cities before I could negotiate for peace. While I rebuilt my troops, Soviet annexed Scandinavia and then declared war with the Fins. It didn't take many turns before they conquered Berlin. Meanwhile, Japan had been doing fairly well in Asia. Soviet-Japan war was at standstill. Italy had lost all cities outside of their mainland. Quit at that point, considering myself defeated.
Japan: was harder than I had thought, but after taking a good portion of China I was able to make way through Indonesia. Germany made a short process of Poland / mainland lowlands/France, but after that neither Germany or Allies took any cities (aside from America taking Cagliari). Rather than preparing to invade Australia or India, I focused on my Russian border. When Soviet and Germany declared war, I launched an assault on Siberia. Unfortunately, my troops were slaughtered by the red army. Meanwhile, America sneaked (not viewing enemy turns) a transport to Kyoto and landed a regiment of tanks. I considered myself defeated when Soviet had taken Pyonyang and America had razed Kyoto.
Sweden: Decided to try a neutral nation and figured that Sweden should be able to take advantage of Soviet-German war. Rushed a lot of infantry (thought that the available bombers/artillery was just not good enough to make a huge difference) and conquered Norway with heavy losses. Made an effort to fortify my borders against russian invaders, but when they showed up it was with massive stacks of T-34s. My defenders and cities soon fell to the red army. 3 games in a row that Soviet defeated me
Argentina: Figured it was best to be far away from Soviet if I wanted to be neutral. Argentina was fun to play, and agressive strategies allowed me to dominate south america. Didn't see the point in continuing after the continent was mine (American troops far too good for me to try them). At that point, Germany dominated Europe and Japan dominated East Asia. Soviet owned Scandinavia + most of finland but had lost some cities to Germany.
Germany, second try. This time I turned the armies around after conquering France. I set up small garrisons in the newly conquered cities and attacked the Soviets. Finland got hit badly, and Italy lost cities to America, but I was able to take out the major russian cities before Soviet had grown into a monster. I signed a peace treaty when the Soviets were clear out of Europe, and gave a lot of the northern cities to Finland. After launching a massive paradrop on Britain, I conquered the british isles and considered myself victorious.
Great Britain: wasn't as fun as I had thought. I left nearly all my cities virtually defenceless and landed in the Netherlands. Germany quickly took Poland but didn't make any progress after that. They conquered Antwerp, Amsterdam and Rotterdam, but I instantly took them back and could start pushing back. I considered myself victorious after conquering Berlin. Meanwhile, I was also able to delay the Japanese a lot, establish sea dominion in the pacific and drive Italy out of Africa.
Finland (regent difficulty, so easier than before): I reloaded a few times to get a good start with conquering Sweden (they have resources I needed) and get an early war with Soviet. Since they didn't have tech to build T-34's, Germany made huge progress and I was able to take several cities from them through bombardments + superior infantry. The early war with Soviet meant that the German AI wasn't able to conquer all of mainland France. Didn't see the point in continuing after driving the Russians out of Europe - Britain already had far too superior troops to make any progress.
Italy: Reloaded a few times to get a good start by conquering Yoguslavia and Greece. Sniped a couple of French cities from the Germans. After sinking the british mediterrenean fleet, I invaded egypt. By using a huge stack of artillery, I conquered nearly all of Africa - my main problem was the US troops that landed in western Sahara, and keeping the allied fleets out of the mediterrenean. Germany actually invaded Ireland. I considered myself victorious after taking Cape Town.
All in all, a lot of fun. My primary complaints would be that US/GB/Soviet and Germany gets too powerful units for anyone else to stand a real chance, and that research is hopeless for the minor nations (40 turns per tech, a new but still inferior unit every 5:th tech...). I haven't tried the latest version though, but I probably will