RPC-042 is a humanoid entity of unknown origin with long, sharp supernumerary teeth on its extended jaws, similar fingers, and minimal hair follicles.

Tier: 9-B

Classification: Gamma-Red

Powers and Abilities: Superhuman physical characteristics, limited technology manipulation (Its screeching seems to disable auto devices), mind manipulation (Many who hear it's screeches develop mental disorders with some cases being permanent), regeneration (Low-Mid, healed from being shot multiple times), immorality (Type 7, appears to be a rotten body), natural weaponry (Teeth and sharp fingers)

Attack Potency: Wall level (Tore a man to pieces with its hands. It has broken out of containment while the facility remained shut down)

Speed: Unknown

Lifting Strength: At least Below Average Human

Striking Strength: Wall level (Ripped a man to pieces)

Durability: Human level (Gets hurts by bullets to the point they pass through him)

Speed: Superhuman (Can keep going after being shot repeatedly)

Range: Standard Melee Range

Standard Equipment: None notable

Intelligence: Animalistic (Will go after anything that causes sounds louder than 20 dB prioritizing the loudest thing)

Standard Tactics: RPC-042 is mostly passive until it hears a sound of 20 dB in volume or higher. Afterwards, it'll start screeching with sounds as strong as 130 dB between 2-6 seconds and then proceed to attack what's causing the sound, prioritizing the loudest sound.

Weakness: Is blind, and despite being blind, flash grenades seem able to stun it.