There isn't even a need to do a briefing on this guy. If you are here, you most likely want to kill him anyway, so we'll just make that reason enough. Poison Pastries Rush loves to eat, and his obsession with food shall be his downfall. Your mission objectives have been stated. The Assassins Organization takes no responsibility for the loss of life of its employees or their victims.
All actions taken are the sole responsibility of the individual assassin.
I always felt this scenerio tried hard but failed to be cool.