GUESS THE CONTEXT; PERSON 1: "BE POLITE." [PERSON 1 HEADSHOTS PERSON 2, PERSON 3, AND PERSON 4, BLOWING THE LAST'S HEAD CLEAN OFF.] PERSON 1: "BE EFFICIENT." [SLOW-MOTION SHOT OF THE PERSON 1 RELOADING HIS RIFLE.] PERSON 1: "AND HAVE A PLAN TO KILL EVERYONE YOU MEET"