It would be nice if ruins were randomly generated throughout the map as well. Switching up different concealment and cover concerns would help to keep the environment engaging. For that matter, abandoned and wrecked vehicles, along with piles of industrial garbage, could be scattered randomly about as well for the same reasons. The number of times that I used rusted out vehicles and large piles of junk in STALKER for cover are too many to count, but boy, do I remember having to use them. I never thought that rusty junk could look so good till I played STALKER.
One island that has regions that I feel would fit quite well with a STALKER/Metro-esque world is Klurs. http://www.armedassault.info/index.p...=islands&id=92 Its cold and barren frostiness is a departure from what we're usually treated to in STALKER, but its ambiance still evokes the same kind of response of dread and loneliness from me. I'm getting a chill just looking at those screenshots!