I gave the Search function a chance and didn't quite come up with a result that meet my expectations. As you may know, I am converting the Diomin D&D setting to HARP. At an early point in an adventure, there are snipers whose goal is to test the party. They're using bows, and naturally their intent is not to kill. I've been at a loss at finding nonlethal combat rules. At the same time, they have some advantages over the party: higher ground for starters, but there are only two, so the party should outnumber them.
I do have Martial Law, so I may have missed it if it's in there.
Sorry, got it: -20 OB, reduce any major critical to one of less severity. Thanks anyway.