So in the geck, I modded a weapon to use different ammo and do different damage. Now, when I fire the gun in-game, it does not play the firing sound nor is there any muzzle flash. Any suggestion to fix this issue and make it play the firing sound and make the muzzle flash?

Look at the properties of the weapon. Click on the "Art and Sound" tab.

Thank you, oops :blush2: