Go offline, load any one of the updated maps. Go into CM eye, go over eacy field type, port, Vfield, etc and take a snap shot.
You just made your own custom maps. Now label em, move em from ah main directory to maps. Heck you can even load them in paint and put arrows, labels, etc.
There are a LOT of ways to give back to the community. This would be one, find one that suits you and go to work.