The Bunker

"Who knows Bob," John said to the Colonel in a solemn tone. "As far as I am aware, nobody has ever done what we are about to do. Think about it: we are going to put twelve strangers in a bunker one hundred feet underground, and then tell them that all we are going to do is observe their interactions while they perform basic tasks for two weeks. Then we are going to fake a cataclysmic event followed by a complete disconnect for an additional two weeks while we secretly monitor their meltdown from inside. After two weeks of subliminal messaging, and with our guy inside feeding fear into them, they will think World War Three has happened and they are the lone survivors trapped one hundred feet underground. How would you react, Bob?" John asked the Colonel.
HOW WOULD YOU REACT?