TL,DR: This video may strengthen your decision to NOT buy this game.

There is so much wrong with this Video it is difficult to pick out single aspects of this - imho - botched... uhm... botch. Which is botchy.
Bad prison guy seems to be the only one bad enough to kill a warden and not just push them around like the other sissies. Dramatically taking keys where all the cells are open already.
Good guy has a weapon locker, tall as a man, in his flat, that the wife never noticed before. Goes to another mobile locker inside a store, that's getting looted. Locker still there, untouched.
News of some outbreak of whatever, mayhem everywhere. The right time to leave your wife and daughter.
All that in the first three minutes.
Everyone's looting but prisoners don't change clothes, so you don't mess them up with civilians. Why are they taking hostages? There is nothing to negotiate. After doing their bad-guy-thing they are just standing around waiting for you to shoot them? Then the inevitable honor-pathos-hero part: "going back out there? after all that?" That's pathetic and cheap.
I thought the story was some sort of "virus hits big city"-thing or something of the kind. All they show us is fighting against escapees. If that is the main activity in the game, this is just lame.
All in all bad storytelling, bad acting, bad and good guys not credible. That does not mean, that the story or the game have to be bad, but this video does nothing to promote it.