The dataR.cpk file found in Persona 5 Royal contains a GMD model folder, Model (P5R). Each folder is categorized by character ID number. See Model (P5R) for a full list of ID number with character names and descriptions. 3501 refers to P5R's Monacopter, and contains 2 GMD models related to him. The directory also contains folders organizing GAP animations by purpose (event).
|0||c3501_000_00.GMD||Helicopter||Morgana transformed into a helicopter|