Attack!

If Higson had plenty of loopholes in their deal—that was: they could kill as long as he didn't see it directly and could even decide on the punishment because of their leverage—he, too, placed one for himself. 

He simply couldn't betray him or his party directly. If he didn't give explicit assistance to whoever would deal with Higson, then he was safe. 

Higson either didn't notice or didn't care because he was too confident in himself, his men, and his guns. 

Anyway, because Vismont didn't prohibit fighting, dealing with Higson's group of men was surprisingly simple.

What's more, there was someone who triumphed over everyone in level. 

It could be said that Higson's order to allow for violence—and with so many loopholes—had backfired on him horrendously.