It's locational damage. Machete to the head is decap, chest = nice slice wound visible, back = same as chest, arms = arms removed, legs = one or both legs removed, lower torso = intestines start to hang out.
Shotgun to the back exposes an awesome look at the Zed's inner workings, etc.
Weapon FOV is a bit ****ed up in the demo. Full release will fix this though.
Agreeing with Kettch. Not enough 'changes' or 'improvements' to warrant a purchase if you already own L4D 1 imho.
I'm in this camp as well. I was initially looking forward to the L4D2...maybe even excited to try the demo...and I'm glad I did.
What a ****ing egg they layed on this game.
I be disappointed .