Hi Gladiator,
As Gibsonm pointed out, the map is being worked on. It's actually a massive update that includes adding roads and buildings to Hannover Mitte and the surrounding areas. I'm trying to make it as close to realistic as possible within the constraints of the limited building models but it will look a lot more like the actual cities. I've also been connecting roads, adding some cities to the Northwest and East, fixing railroads, moving buildings off of roads, fixing bridges, cleaning up strange artifacts, and so on. I'm trying to get it done by the end of this month or middle of June at the latest, but it's been a huge amount of work. I've been spending about 4 hours a day of and on working on it since the beginning of December. It's just a lot of picky tedious work so hang in there as it is coming.
By the way, there will still be some areas of the map that will be incomplete. There are just way too many actual map object and areas in real life and it would take a lifetime to fill all that in. I'm focusing on the most important populated areas and some of the smaller towns. The map can always be added to in the future but it will be a much better starting point. The reason the map is so goofed up currently is that it's been converted many times and some of the original objects were substituted in those conversions. So I've had to splice roads in a lot of cases and then use the bridge tool to make the proper one. There are many rivers so it's time consuming. I'm about 80% to 90% done I think.
Here are some shots of the work in progress. (notes on the map are for my reference only)