First one is just the melee cultists their spear has over 50 different types of viruses, bacteria, etc and the blade is dripped into... stuff after you used the bathroom, anyways anyone gets cutted or stabbed by this weapon will die or soon to be die from the viruses alone Second one is the nurgle gunner basically they use maggot filled bullets if land on a target flesh they open up snd begin to rot and eat the rotting flesh at the same time The last one is just the priest of nurgle they can make plagues and rituals and make alters of nurgle to bring his daemons to the realspace