I'm going to be alright in L4D I think, mainly due to the friends showing up through walls so I shouldn't get myself lost in dark corridors quite so much as I normally do. I'm not great in dark FPS'ers though, and I imagine when the sh*t hits the fan and everyone double times it to a safe room I might find myself flailing around in the dark trying to work out which way you all went.
Think of me as a Dart style rogue, push me to the front, I'll set off all the traps, reveal all the monsters and you can pick them off while I do what I can to not turn into a zombie
Just put it on pre-order at Play.com as it seems to be an extra fiver off, will try the demo over the weekend, as it looks like there will be enough interest and you won't all be suprised when I shoot you in the back