Censored Australian version V.S. Uncut version of Left 4 Dead 2
As you can see, the censored Australian version has been so edited, that it's less gory than even the first game. There is no blood splatter, no gore, no wound detail, no zombie dismemberment or decapitation. Zombies cannot be set on fire and their bodies will disappear from the screen as soon as they touch the ground. There are also less zombies coming at you.
http://www.youtube.com/watch?v=OH7QCtuaX gI