Create the use case chain for the game loop task: Use Case Diagram UCD-001, User Stories US-001 (two stories), Use Case UC-001 and System Sequence Diagram SSD-001, all Proposed. Link them from MIL-003. Review MIL-003 (RC-006, Go) and accept it. Add the new artifacts to the Traceability Matrix and register UCD, US, UC and SSD in the artifact registry. Refs #13