Ubisoft is really powering out the marketing material today! First there was the deluge of Assassin's Creed III trailers, then a pretty solid 14 minutes gameplay demo of Far Cry 3. Now this ZombiU walkthrough!
In a lot of ways, ZombiU is suited to this kind of thing -- it's not exactly a pick up and play game, it's the kind of game where you want to watch an experienced player show you how it's done, just to get an idea of how the game will play when you actually understand the mechanics.
I quite like the unique context based way the game allows you to use the Wii U GamePad. Looking good.