I would like it to be completly open, with no big cities with metro tunnels.
Extremely small settlements scattered all over the place, with maybe 1 or 2 bigger ones, on a twice as big as the capital wasteland.
Like settlments no bigger than big town, with just a couple of buildings.
And lots and lots of weapons, but that's already in N.V.
Just a wide, open map where we can get out and just explore.