Screecher Zombie

The Screecher Zombie is an enemy introduced in The Ancient Gods - Part Two, the second major campaign extension for Doom Eternal. It is like 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 effect last temporarily. If every other demon is killed before the Screecher Zombie, then it will automatically die.

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.''