Rocoteh, thank you for the credits. I guess it was for spotting the Norwegian infantry division in Denmark?
I have been so busy that I haven't had time to play for almost three weeks. And now that I have version 1.9 I see no reason to go continue my old game. I was only doing so-so anyway, so it's not much of a loss. But before I start a brand new 1.9 game I would like to leave my first and only report from 1.8.
Since this was my first time I decided to start a game on monarch level as Germany. All in all it was both easier and harder than I expected. It took me a while to figure out how to utilize all units properly, and I lost a lot of units because of that, Kriegsmarine in particularly took some serious losses. Luftwaffe fared a little better, at least initialy.
During the year (some 50-55 weeks) I played I made rapid advance in Europe, a true Blitzkrieg. Before 1939 had ended all of Europe except Britain, Italy, Russia and Finland was in German hands.
After I had conquered Poland I planned on taking France, and then Spain. However, the Scandinavians asked me simultaneously to remove my troops from their territory. I guess it was the mine fields and not my u-boats that irritated them. I had to punish them for their arrogance, and therefore I declared war on them.
Without a transport fleet it took ages to move just a couple of infantry divisions to Scandinavia. And while I managed to take southern Scandinavia the Finns had already conquered the northern half. I sent my only transport with a destroyer fleet to take Iceland. I conquered the island but lost my fleet to the British. Once operation Weserübung was over I turned my full attention to the French. By this time I had learned to concentrate the Luftwaffe on single targets, like the French SOD crossing my border just to withdraw in the following turn, and then cross the border again! The French AI made it so easy for me.
Nonetheless, I lost a lot of panzers in France. Paris was hard to take, even after Luftwaffe had bombed the city for a few turns. The conquest of France was pretty easy, but I lost quite a lot of units because I didn't have the patience to let Luftwaffe destroy more French units. Still, France became incorporated into the Reich, and Spain was next. And I took Portugal and Gibraltar as well.
The Italians were more of a hindrance than a help, so I guess that part is historically accurate.

I gave them a ROP so they would get out of my territory faster, but instead they began to get in my way everywhere. After I conquered Yugoslavia and Greece at the end of 1939 I turned my full attention to the Turks. The Italians had declared war on them very early in the game, and so had the Greeks. It was pretty amusing to see Greeks and Turks fighting each other in my territory while I was busy with the French. I destroyed them both in one sweep. Luftwaffe bombed Crete, and then I sent paratroopers to take the island. I noticed the Italians had a lot of tanks on Cyprus, which they had taken from the British. Talk about waste. Unfortunately the AI isn't very smart.
Up to this moment everything had been very easy. But things were about to change. My first real setback came in the Atlantic. At first it seemed like Kriegsmarine would be victorious. The Brits allowed me to sink their carriers by sending them right into my u-boat fleet in the North Sea. And the British attacked, and managed to damage one of my poor mine fields!
Their battle ships were a lot harder to sink. I lost a lot of u-boats, but they could easily be replaced. The destroyers were a much bigger problem. I sent all my available u-boats out into the Atlantic, I thought it would be strategically important to control the sea outside Gibraltar. Unfortunately the entire American destroyer fleet came after me. I underestimated their numbers, and they destroyed my entire u-boat fleet, except two u-boats who managed to hide west of Greenland. That was an unpleasant surprise. The allies ruled the seas while I had to build up my u-boat fleet from scratch. However, knowing the behaviour of the AI I set a trap for them. I moved all of the remaining Kriegsmarine and all of Luftwaffe to Bergen, and then I sent out a lonely u-boat. The AI swallowed the bait, and while the destroyers chased my u-boat I used the Luftwaffe and the Kriegsmarine to pick them off one by one, far away from the nearest friendly port. There were so many destroyers that some managed to get back to safety despite by best efforts. But by now the tide had turned, I produced u-boats in every port, and in the summer of 1940 I had more than 60 u-boats, whereof 15 were operating in the Mediterranean. By this time I was in complete control of the Atlantic. By u-boats patrolled the coasts of America between Canada and Argentina, and I even sent some into the Indian Ocean.
But as I turned defeat to victory in the seas the situation was reversed on land. The early conquest of Turkey was a mistake. It exposed me to the counter-attacks of the allies. I took Damascus, Baghdad and Amman easily enough, but then my troubles began. I split my forces: some were sent to secure the Arabian peninsula, while others were moving towards Iran, and yet others turned towards Egypt. I should have focused on capturing Suez. The battle of Suez became my El-Alamain. The French captured Tobruk, the last Italian city in North Africa, at the same time my assault on Suez was beaten back. And on the following turn the Sovietunion attacked me when I was as weakest. They razed Bucharest and Istanbul!

One on one I could have defeated them. But now I had to fight the Russians, the French and the British simultaneously in the Middle East. Even the Chinese sent a couple of infantry divisions! Shouldn't the Chinese be busy fighting the Japanese?
This proved to be too much. I had particular problems with the French tanks (Somua?). They were a lot more frightening than the weak British and Russian tanks.
And in the middle of all this Brazil declared war on me when I tried to plant a spy there.

They are so lucky I was in war with at least 10 other nations at that time, or else I would have sent a fleet to give them the scandinavian treatment.
Of course, it would have been easier if I hadn't restricted myself by not building new panzers. I thought it would be too easy if I used panzers, so I decided to try conquering the world only with infantry. Naturally, the disaster in the ME made me rethink my position. I started building panzers, but that didn't really change much. The French attacked me from North Africa, the Russians from Iran, from Caucasus, and in Europe, and the British from all directions. I took a city, then someone took it back, and I had to reconquer it again. I think Amman was worst. Control of that city switched hands at least 14 times. I lost it to the British once, twice to the Russians and 5 times to the French, and I always took it back.
The problem was that I didn't have enough units to both take AND hold the ME. At least not while I was fighting an even bigger war in Eastern Europe. I didn't have enough panzer or garrison troops to secure a city.
Still, despite using nothing but infantry initially I managed to push the Russians back. I razed a lot of cities: Odessa, Vilnius, Smolensk, Tallinn, Novgorod, and a few other cities. Leningrad was tough to take, but I took it, and began to encircle Moscow instead of trying to push through the fortresses. The Russian AI was obsessed by the airfields in Ukraine, so it was easy to ignore them and focus on taking the cities. And he had more units in the ME than in Russia, so the Russian resistance to my attacks was fairly mediocre.
And since I had to build lots of infantry and panzer to continue the push the Luftwaffe began to suffer since I couldn't bother to reinforce them. Towards the end of the game the RAF began to annoy me. They bombed both Bergen, Amsterdam and Paris, not to mention the cities I was holding in the ME.
This is a classical example of how plans could go wrong. My initial idea was to relieve my allies. If I had taken Suez I could have set up a strong garrison there, since it's a bottleneck, and also let my u-boats pass into the Indian Ocean, and the British would have fought against me rather than the Japanese, but I wasn't given enough time to set up strong defensive positions. The Russian AI really knew when to strike.
As for the Japanese I didn't follow what was happening there, but they made some initial progress that matched my own, but then they began to slow down. The Chinese took Thailand very early in the game, and the Japanese in their turn conquered all of China except Tibet. The Japanese offensive seemed to halt in Burma. And Saigon took them almost a year to conquer. And Singapore didn't fall at all. They razed a lot of cities, though: all Burmese cities except Mandalay, and a city on New Guinea. And when they were in war with the Russians they razed Vladivostok and a couple of other cities.
I had a lot of fun playing this scenario, even the setbacks were kinda fun. I didn't take it too seriously, I mainly wanted to see how fast I could conquer things, and now that I know what to expect I'm going to start a new 1.9 game where I will follow a more historically correct plan. To a certain degree, at least.
The ME disaster taught me that the Blitzkrieg only works in Europe, where I was essentially "city-hopping", that is: focusing on taking the cities first, then attacking the enemy units outside the cities. That tactic does not work in the ME. I have to bring panzer and more garrison units there the next time. The panzer must first destroy the threat of enemy units to secure the conquest of the cities. Taking a city when there is one or more enemy SODs next to it is pretty meaningless.
A large worker-force is also necessary, to quickly build rail-roads to all my newly conquered cities. That should make it easier to defend my gains, so I wont have to retake them multiple times.