Retribution/Plague Father

Plague Father is a Steam achievement in Retribution.

Getting it

The achievement is granted for winning a ranked multiplayer match using only "Nurgle-themed units". There are units which are always themed by Khorne, Tzeench or Nurgle, and units which are "neutral" but may get upgrades associated with one of the Chaos Gods. For a champion of Nurgle – who must be the Plague Champion – only Heretics, Plague Marines and the Great Unclean One are completely safe. Khorne units such as Bloodletters and Bloodcrushers are out of the question, but neutral units can be used as long as you don't purhcase Khorne or Tzeentch upgrades.