Developed and delivered a new decal system for enhanced visual effects within the LeCanne/BangBang_Project repository, focusing on improving in-game visuals and player immersion. Leveraging Unreal Engine and 3D modeling skills, the work integrated dynamic decals across multiple character blueprints and materials, establishing a flexible foundation for future VFX features and performance optimization. The implementation included a dedicated decal demo to demonstrate capabilities and streamline the art-to-engine workflow. All changes were documented and prepared for quality assurance and release review, supporting both marketing asset creation and faster iteration on visual effects without introducing major bugs during the initial development period.