Left 4 Dead/Walkthrough

This section of the guide will take you through each of the levels in Left 4 Dead, outlining the path the survivors need to take, as well as where roughly to expect items and particular foes (namely the Tank and Witch) and any particular things to watch out for (i.e. the metal detectors in Dead Air Chapter 4). Also, for No Mercy and Blood Harvest there is also a page outlining the differences in Versus mode and how to play as both the survivors and Infected in that campaign.