What is a Deep Battle Event?

This is an event where you compete against players on a different map and the more enemies you kill the higher your ranking in the event. When you participate in this event and teleport to another map a message will appear to all the players in the map you moved into. They will be alerted to your location and may attack you. Remember if you teleport to another map and you have a shield it will become disabled, you will though have the option to put up another one.