Should you immediately lie on the ground during an active shooter incident involving firearms?

Yes, lying on the ground can be a recommended response during an active shooter incident, as it reduces your visibility and makes you a smaller target. However, it's essential to also seek cover behind solid objects if possible, as they can provide additional protection. Staying quiet and alert to the situation is crucial, and if you can safely escape, that should be your priority. Always follow the guidance of law enforcement when they arrive on the scene.