Hi, I could see in your screenshot that you haven’t compiled the blueprint yet. Make sure to add the new float input to the Trigger Fire Audio function and compile and save the blueprint. Instructions below:
- B_Weapon
Open this object, then open the function Trigger Fire Audio. Add a new input “Fire Delay” type float. After that, select the Audio Component Set variable, select its right blue pin, right click and select "Set Float Parameter. Connect the new float input to the “In Float” pin and rename the parameter in Name to “ShotInterval”.