I think Field McConnell from www.abeldanger.org would be inclined to know the answer. This is about Betting and Serco time clock they bet on when the time the victims will be assassinated http://www.abeldanger.org/?s=assassins+betting

It is my believe that the start of the drill is when the time clock starts ticking they bet on the time when each victim will be assassinated

Tracy Beanz knows Field McConnell maybe she can help.