A faceless entity in a soundproof cloak, their ‘rifle’ made of solidif

A faceless entity in a soundproof cloak, their ‘rifle’ made of solidified silence (matte dark, absorbing all ambient noise). Bullets are shards of broken music notes where they hit, victims’ mouths stitch shut with ghostly wire. Ultra-detailed 8K, style of ‘Control’ videogame altered items, ASMR horror aesthetic