Screecher Zombie

The Screecher Zombie is an enemy introduced in The Ancient Gods - Part Two, the second major campaign extension for Doom Eternal.

Codex
''The Screechers were once human worshippers of the Ra’ltha Va’Tuum, an ancient Hell cult, but instead of being rewarded for their devotion, they were tortured in the Citadel of Anguish for millennia. They became malformed by their frustrations of life-long deceit. Their blood-curdling screams of anger had fermented into something far more potent, an intoxicating power desired by all demon-kind.''

In-game
The Screecher behaves and looks identical to the normal Zombie, but, upon killing it, makes every other demon in the area (with the exception of other Screecher Zombies) take less damage and move faster than usual. This forces you to be more weary of the type of weapons you choose and your surroundings. Explosives are very likely to trigger the Screecher's buff, so you will have to plan accordingly; taking note of were they are and guiding the other demons to wear there aren't any Screechers nearby.

The buff the Screecher's give can be described as mix between the buffs of a Buff Totem and a Spirit. Screecher buffed zombies move faster, hit harder, can't be faltered, and can't be frozen by the Ice Bomb. The buff isn't permanent, fortunately.