1. Shi no numa - Any round is easy as **** using the vandz tactic.
2. Der riese - Also easy if you are playing with an organised team, or you know what your doing.
3. Nacht Der Untoten - Sort of hard because of no perks, but easy also because its easy to traverse, and money isnt an issue.
4. Kino Der Untoten - Quite easy to 'Train' But money is a big issue on this map, so if the wrong weapons come your way, it makes it a difficult map to do well on.
5. FIVE - Relatively difficult due to high amount of zombies, and the only 'Trainable' area is very high risk.
6. Verruckt - Strongest fastest zombies. Very very hard map due to no 'Trainable' Area's.