I think you're making too many assumptions about "Breen 2", and what his role might be in all of this.
While I don't have any specific information on the matter either (we'll have to wait for the event series to unfold), to me the current narrative, from what I heard and from what I read around the forums is this:
The Union has become more lax overtime, which has heightened rebellious activity. It is the job of the Union side to squash the rebellious activity to avoid awakening the "new hitler", which opens room for a lot of grey area.
If you were a member of CAB and you knew that while having those people shot is incredibly evil, they didn't do something so bad, but if you do not have them shot there is a chance they will ramp up and eventually get out of hand, at which point the final solution arrives, in the form of the combine.
It's the whole dilema - Should the Americans have bombed the concentration camps, killed thousands of civilians, but stopped the Nazi machinery from continuing the Holocaust at the pace it was? Was them killing all those innocents morally justifiable to perhaps save many more?
The existence of a true evil forces everyone into extremely difficult moral dilemas, it's interesting, it's complicated and it's a constant struggle about who is really acting in whose best interest.
Look at the old Lore. In the final event, the remaining CAB that were still alive, weren't trying to 'save their position' or 'trying to keep their status'. It became apparent as things progressed that if rebels kept pushing closer and closer to victory it would spell doom for Earth. There was no visible way for "Humanity" to win.
Were they true evil for trying to stop the rebels from doing what they were trying, or were they stuck between an extremely difficult choice? I'd say the latter. It was one of the things that made that last event for me.
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There's also the fact that one of the only actually antagonistic and selfless people in CAB right now who is actively milking the citizenry for their own good and who's methods will eventually start to impact their lives negatively to show its not all sunshine and roses is Ravoux and by extension Huxley because I can imagine him doing batshit stuff if it means saving his species. Everyone else is fighting strictly for humanity or their own platform and there's no... bite there.
I spoke to
@Snook about this like.. 5 months ago, and the lack of a more antagonistic face/person for the civil authority. I'm glad it is happening now, so actual conflict can erupt.