The refugee center is a building in Hayward Valley, which was in construction before the apocalypse. Its scaffolds are a very good place for weapon loot. It is one of, if not the best place to find loot. It often spawns various weapons, including the AT-15 Civilian Rifle, Mod16 Assault and DD-Mk18, and various shotguns, bolt-action rifles and secondaries. If one does not find a weapon on these scaffolds, then they must have very, very bad luck or someone has looted it, and is in Hayward.