Over a two-month period, contributed to the BlackCatMax/LD04 repository by designing and delivering the Diana playable level, expanding the game world with new map files and integrated assets. Focused on asset management and level design within Unreal Engine, the work included implementing a communication center to enhance player interaction and gameplay mechanics. Leveraged Unreal Engine asset workflows and Git-based version control to ensure reproducibility and streamlined collaboration. The updates introduced new binary assets and map references, supporting future content expansion and DLC preparation. No bugs were reported or fixed, as the primary emphasis remained on content delivery and technical pipeline improvements.