Rob and Riley walk back in the pouring rain towards the bridge with their four escorts who have still not said a word to either of them. They were completely silent on the way over too, and when the Colonel was giving them orders, simply nodding and saluting as they accepted whatever he said, as if their speech programming was removed, or had taken a vow of silence perhaps.
But he’d seen them speak to each other in hushed tones and whispers when nobody was close enough to hear. Snapping back to silent mode whenever somebody got within a certain distance. The colonel didn’t push them for answers, he figured they were too scared to talk, the cult seemed creepy in that regard. Mysterious and frightening.