These creatures with the bodies of men and the heads of goats are the children of Thed. They are vile and rapacious, and known to worship disease.
Broo are Chaos creatures, known to cooperate with each other and displaying remarkable intelligence. They will generally attack only smaller groups, or raid by surprise.
Broo tend to be rather rag-tag, having only whatever armor and weapons they've been able to scavenge from their victims, as no one in his right mind would actually trade with Broo.
No one has ever seen a female Broo.