Help me with my turret project

In my UE project, there are a bunch of turrets dispersed throughout the map.

As soon as you start the game, there is a red button. I’d like that when the player steps on it, all the turrets inside the game deactivate.

Here are the links of the blueprints:

BP_Turret posted by anonymous | blueprintUE | PasteBin For Unreal Engine

BP_Bala posted by anonymous | blueprintUE | PasteBin For Unreal Engine

BP_ThirdPersonCharacter posted by anonymous | blueprintUE | PasteBin For Unreal Engine