if you can specify a lil bit im sure i could make a map for you. I dont know how much u know about the mapper but he is of course very limited.
Its a lil bit like painting in MS Paint with oddly large pixel size.
In other word u can generate random places but u have problems with unique things. For example i wouldnt be able to make an arc like in new reno and change details of it. The arc in new reno consists of about 20 parts you have to set in the right order.
Another thing is (you might know that) that fallout is limited to 1 level buildings. There are some (very few) buildings that seem to have multiple levels but they are pretty few.
Im still learning about the mapper but it seems to me right know that some items that u can place in the maps have already functions u cannot change. For example if you place a workbench somewhere it will work automatically as a workbench. Im not able to make a table that serves as a workbench.
I worked a lil bit with inculding NPCs in my maps and this particular thing seems to be very easy. But i have problems with loading new dialogs into the mapper. I usually reuse some of the already present.
Hope this few pointers help :)
and as is said, u just have to specify how u like the map and ill love to make one.