In 7th Sea, brutes deal damage to the more high profile characters based on their margin of success.
The reason I ask is because Henchmen/Villains/Heroes make raises for damage, and I see raising to hit another brute as essentially the same thing as a raise for damage against the brute health track. Brutes obviously don't raise for damage (or that's an entirely new question) although on other rolls they can make raises as normal.
What happens if one brute squad attacks another? Can they only knock one brute out from the target squad at a time, do they have to make raises, or does their MoS knock out extras?