When it comes to production, Germany had three main issues which caused major issues. Firstly, they produced too much. Yes, I just said that. They were only outproduced about 2.5:1 on average, and no more than 7:1 in any major category. When it came to tanks, they were outproduced 2.5:1, not 12-16:1 like the myth goes. The problem with numbers typically used is that they count tanks produced by Russia in first and last three months of war, and often include 60-80k tanks which were produced post war. Why was this an issue? Because they only had the manpower and resources to run about 1/3rd of these effectively. The Germans had stellar kill ratios in tanks and planes, but the loss ratio for fuel or maintenance was the total inverse. The Germans had a 6:1 kill ratio in tanks, and a 6:1 ratio of tanks lost to parts or fuel shortages, which completely canceled each other. Planes were very similar. Secondly, they stretched their supplies too thin and so any given unit was less effective. They should have never fielded units unless they had the spare parts and fuel to keep them running optimally. It doesnt matter if you have twice as many tanks and planes, if they spend 8-10 times longer waiting to be repaired. For instance, most tank units usually only had 1/4th of their tanks working at a time, and even those had to be used very sparingly. They used them as little as possible, ran them only when completely necessary. If they had produced fewer complete units and used the savings to keep up on spare parts, it would have worked out much better. One single tank hull makes a lot of engine blocks or rifle barrels, while a single aircraft fuselage can make a considerable amount of small aluminum parts. A single tank or aircraft could provide enough steel and aluminum for an entire division of infantry, or a regiment of motorized infantry. The last major production issue was using all that alcohol for the V2. Each V2 had over 1000 gallons of alcohol, which would have been able to power the typical force of 1000-1500 running tanks about 5000 miles each. A trade off could have allowed this to be used to power vehicles in the homeland, while saving much of the crop for its best purpose, feeding the hungry. Overall, they did quite well, thanks to my friend Albert Speer. We always ask what Germany could have done, but we really should be asking how everyone else was so inept as to be individually matched or even outproduced by Germany, who did not have the luxuries of any of the Allied nations.