Congratulations to SgtMjr Herbius on topping your local Cell, a nice reward for a good days work!
A nice bike ride through Blackfen resulted in 8 nested fields, based off a portal a stone's throw from an enemy barracks.

The largest protection field was 11,410 MU and the total was around 50K.

Unfortunately one layer got taken down before a screenshot could be obtained, but this is still a lovely image.