Just to be clear I know a number of suggestions were on the effect of "follow the laws", but I really don't like that. The whole point is that, having no reason to believe that this is bad, these people are trained to do things in the most efficient way possible.
To be clear, my suggestions are predicated upon the established canon in which *knowledge* of the "Laws" is not a factor at all: these magical actions simply, universally, and indiscriminately corrupt mortals by laying Lawbreaker powers on them, whether they are White Council, warlock, hermit, honor roll student, or black ops specialist.
In the DresdenVerse, to propose an elite group of black ops specialists ignorant of the White Council be immune to Lawbreaker fallout is similar to proposing that radiation should not harm someone ignorant of radiation or its harms. It isn't a judgement of right or wrong, except insofar as there is an implicit Good and Evil at work in the DresdenVerse.
Lawbreaker, the stunt, is radiation damage to the soul. It can be avoided or, with sufficient tech/magic, minimized, but it's kind of out there as a "natural "law, even if the White Council is wiped out to the last wizard.
"Lawbreaker," the pronouncement made by the White Council, is a judgement by mortal Wizards against someone who may or may not actually have been twisted by the Lawbreaker power, but who probably did something they don't like.
Edit: that said, it could be a fun game, and I could see a benefit to ignoring those rules. But if the other spellcasters in the universe have to contend with it, then there should be a better explanation than "because black ops is badass" - perhaps some as yet unidentified Sponsored Magic.