I don't know if anyone has mentioned this yet. If so, my apologies for this post being redundant. I have a question, though, about DI:G's portrayal of the U-boats. When I build these units, they are labeled as U-18, U-19, U-20, etc. What does this mean, precisely? It looks like individual U-boats. But there's no way these units can represent individual boats, is there? I mean, there were 1000+ U-boats built, and I can see no way of constructing this many in-game. Even giving the player 10 years, he or she would be required to build 100+ per year, and even then the project would not be finished until 1947, given production beginning in 1937. It seems to me that the scale of this game is larger by far than a single U-boat per unit. So what is going on?