Sarcasticgamer.com demos the demo and lives to tell about it.
From the article: " The first level threw us into a primitive desert village bursting with corrugated steel and single story buildings. I sported a dashing sniper rifle, and my colleague a shotgun. After jogging a few steps towards the nearest friendly looking outpost, expecting a hospitable welcome and many chilled drinks, a cutscene triggered depicting a nasty fellow decapitating a man with an ungainly axe. As blood dribbled out the poor chap's severed neck, the leader of this vile troupe spotted us and sent every zombie in the surrounding area to our position."