OXM UK writes:
"So yeah, we've been playing a lot of Left 4 Dead.
We've been playing a loooooooot of Left 4 Dead. There's been a lot of tips, tricks and other weird stuff we've learnt either through our own trial and error or just through other players telling us.
So we've compiled it all here. This WILL make you a better Versus player because there will be at least one thing on this list you can take away and use in your matches. Read away and happy hunting!"