Source materials (e.g., House Memories, Untapped Potential, Corrupted Sample) are found throughout the Oldest House, dropped by enemies, or rewarded from missions. These materials are essential for crafting new Service Weapon forms, upgrading existing ones, and crafting mods at Control Points. Always collect materials you find, as they are a finite resource. Prioritize crafting weapon forms you'll use frequently and upgrading your favorite mods to higher tiers.
