Is there a way to disable bullet impacts for custom ammo types?

[DerRadikaleRichard]

im looking for a way to remove the impacts that spray blood or dust when you hit a zombie or the ground ideally with a command that i can add to an ammo type and not the weapon itself.

alternatively i could allso use a way to apply a buff to an enemy target by left clicking on it without actually connecting a shot however i havent found a way to do that for example the class "useother" didnt really work to apply a buff if you link it to an ammo type.

any help is apreciated.