76 knows the plan, knows who is taking on who, but given the fact that he'll be the one turning on Reaper, he doesn't trust that things won't go pear-shaped sooner rather than later. All he can do for now, however, is keep playing along, wait for the right moment, and then play his part. Whether Reaper decides to do what he's supposed to do is yet to be seen.

But he fixes Reyes with a pointed stare anyway, a nonverbal gesture whose meaning is obvious. Don't screw it up.

With that (possibly) taken care of, he steps up to Azúcar, clearly acting as her muscle.

"Don't think it's going to work like that."

He's just saying.