Worked on a targeted data refresh for the Blood Angels army in the BSData/wh40k-10e repository, updating the XML-based data files to align with the latest core game rules and unit changes. Focused on revising the Black Rage ability descriptions across multiple units, the work improved data accuracy and maintainability for the 10th edition ruleset. Emphasized clear data management practices by incrementing revision numbers and maintaining an auditable change log, supporting governance and rollback needs. Leveraged skills in data management and game rules updates to ensure the repository remains current, enabling faster future refreshes and consistent gameplay experiences for users.