I believe there are not enough enemies representing chaos as it stands currently. Maybe Nurglings that pop out of infested enemies or enemies that produce massive swarms of poison inflicting flies.
If Nurgle is supposed to be a force to be feared in Vermintide, why isn’t his gifts appreciated as they should
Some Enemies people have commented on my previous posts about additional enemies and they seem to be intested in:
A suicide bomber Esq Skaven/chaos creature that can inflict massive dmg, but can also kill or harm friendly enemies in its vicinity
Plague monks or Nurglings
Enemies that spawn Nurglings or Plague flies that can inflict poison dmg to the party, somewhat of a massive living hive , Great Unclean One or Glottkin could be used as a new massive beast to fight instead of the Ogres and Chaos Spawns
People also seem desperately hopeful for Khornes forces, Maybe a arena style mode or map that Demons of Khorne force the party to fight Skaven or demons of Khorne and the parties mission is to survive to save slaves captured by Khornes demons.