I thought we were running with society living in the DC metro but starting to colonize the surface? Oh wait, I just read it again. Yeah, I can definitely live without having to wear a gas mask all the time when on the surface. Having post-apocalyptic society just starting to crawl out of the metro instead of being confined there because the surface is unbreathable floats my boat better. Sounds to me like this Fallout/Metro combo might also end up feeling a bit like STALKER as well. Sounds to me like only certain areas are going to be hazardous, like the heavily irradiated areas in Fallout 3 and the anomalies of STALKER.