"It's not a "British" Reaper, but an American one assigned to the 42nd Attack Squadron (that could be jointly operated by UK personnel but not the case here). The only Brit involvement looks like the Flight Sergeant at the end working as the sensor operator."
Not that there have been any rumours that due to differences in ROE, it's not unknown for command of some of the more pro-active UAVs to be quietly transferred between Jeeves and Chuck just in time to squeeze one off before the original model aircraft controller slips back into the seat. Or if there are any such rumours, they definitely haven't reached me.
R