15.5: 18 rebuilt single-ruin layouts. Five compact 2-3-room sites and thirteen larger connected 4-7-room sites. Shared-wall doors, irregular wings, distinct workshop/storage/armory/living/medical loot. Existing 8 quarters, 16 settlements, 12 catastrophe city templates and ideology scripts preserved. Exact world-wide spawn quotas are not guaranteed by per-template chances.