No, that's not exactly what he wants to know, and he's quick to butt in and make that clear. Reaper working with Talon as a means to his own ends is fairly obvious, but the fact is that the organization has been an enemy of Overwatch for a very long time. 76 needs to know when the overlap started.

"How long? How much of Talon is Blackwatch?"

How long was this going on right under his nose?

"Before Ana, or after?"

Because if Gabriel had something to do with Gérard, with Amélie, with Ana's attemptd assassination, well. There's going to be hell to pay.