Yea, but only if players actually are to spend time in bunkers, if not there is no real meaning to heaving big bunkers, the one thing they should be having instead is big towns, not the small ass communities like in fallout 3 (sorry for mentioning another game here) where a "town" where inhabited by 5-30 citizens.... "OH BOY ITS THE BIG TOWN AREFU WITH 5 PEOPLE IN IT!"...
But realistic big bunkers would be nice aswell, I just have one request for this, dont make the corridors/rooms all GIGANTIC like in all other mmo:s, where somehow all buildings/caves/well everything where built by a extinct giant race and all those areas are now occupied by minipeople.