The UAV, which is referred as Nine by Michaels, actually isn't MQ-9 Predator. Predator was only the name for the prototype MQ-9 version until it was officially renamed into MQ-9 Reaper, when it got into service in US Air Force. In the episode it's shown with the jet engine but the real counterpart has a three bladed propeller.
Diggle pulls the scarf away from the supposed dead boy's face but the boy has his eyes scrunched so tight you can see the creases in his forehead.