This first map Carbon is loosely based of Rats Nest in terms of the the ring on the outside and power weapons but the fuel rod (6 shots max) replaces rockets.
Carbon:
Overview of base
Inside base
Overview of mid
This map Refinery is taken from the Avalanche design which still needs a lot of work D:
Overview of base
General Overview
Path to Upper
View inside Upper
Should have both of these finished at the weekend once I get some more basic testing done.