Beautiful map, really love the classic nazi zombies art style. I also enjoy the layout, there are a lot of interesting places to camp or run. Planning on camping in the Bar room with the spawn door closed when my buddies have some free time.
To be nitpicky, there are a few strange/annoying things.
First, getting revived in solo causes grenades (and molotovs/monkeys) to go away. They do come back eventually but I'm not sure how exactly. Even when they do come back, roundly frags stop generating.
Zombies drop dead and respawn at a very close range. Even running just from the spawn room to the library causes some of them to respawn. I don't think this mechanic improves the map, it's artificial difficulty that does nothing but aggravate the player and waste time.
Traps down the player with jug instantly. Got sucker punched while playing solo once by this. This doesn't really make the map more challenging, it punishes the player for doing something that is safe on every stock map.
The STG-44 has no recoil.