This was hilarious! This footage was actually made for Amber Watch Alert and you can find them here. http://amberwatchalert.org/
However with a little creative editing it also becomes a badass advertisement for Left 4 Dead 3.
I would pay huge amounts to play this game. No really they need to make one of the characters in the next version of Left 4 Dead to be a kick butt soccer mom defending her kids. Maybe give her en eye patch or something. Aaaaaaarrrrr
Best thing I’ve seen all day.