Meserole's Plague Bringers are a mercenary zerg brood led by Meserole the Marauder, a powerful zergling. Its troops include Plague Bringers, a powerful breed of defiler.
The Plague Bringers' services were offered to Infested Stukov when he requested assistance in destroying enemies of his who had collected on a dark planet.
2001-01-31. StarCraft: Brood War. Vivendi Games. Mission: Mercenaries II (in English). Map Archives: Mercenaries II.