I only own caucasus map, so i don't know if my work will fit Germany map. You'll have to know that adding mud on some object is quite hard because the same texture is used by multiple object but not in the same way....so a lot of work to adjust one or more texture for only one object....clearly i don't have that much time for that....
The other problem is when you zoom out, you clearly see a big difference between the ground texture and the object texture....that break the feeling, near the bunker/trench/Wall/cover, there is at least no big differences, but from the distance you can spot clearly the bunker/trench/wall/cover without difficulty....it's not realistic