Worked on a targeted balance update for the Adeptus Custodes army list in the BSData/wh40k-10e repository, aligning unit point values with the latest official Field Manual. The update was implemented through a single, well-documented XML commit, emphasizing precise data management and adherence to version control best practices. Focus remained on maintaining data accuracy and ensuring release readiness, with no major bugs reported during the period. This work improved rule accuracy for players and enabled rapid responsiveness to official changes, demonstrating disciplined data curation and effective use of XML and game development skills in a live, community-driven data environment.