The Turnpike

The Turnpike is the first chapter of the second campaign, Death Toll. The survivors start at the end of an abandoned highway. In front of them, there are tier 1 weapons in the trunk of a police car, with first aid kits scattered inside and around the back of the car. As the survivors follow the highway, they come across a bridge that is out. To get past it, they must go down into the ditch below, and then climb up a ladder on the other side. As they continue on, they eventually reach Riverside Tunnel. As they travel through, they will have to take several detours through side walkways in order to pass roadblocks within the tunnel. At the end of the tunnel is the safe room, leading to the next chapter.

Strategy
Also see: Tactics

All campaign walkthroughs are done on Normal difficulty in single player, and are meant to give tips on what to do and generally point out things that might otherwise be missed.

There are, of course, a few key things to always remember:
 * Stop, look, and listen.
 * Stopping to observe your surroundings might allow you to prepare for something nasty, like a Witch, Tank, or special Infected in a really bad place for them to be.
 * Things can always get worse.
 * Are you and your teammates all hurting, your health down under 50%? Well, guess what? The Director doesn't care. You are now facing a Tank with Tier 1 weapons.
 * Teamwork.
 * This cannot be stressed enough. Left 4 Dead is supposed to be a cooperative game. Communicate with your teammates, if you're playing with others, or if you're by yourself with the AI, point out things they might otherwise miss. In all cases, watch out for each other and take care of each other. You are not going to survive the zombie apocalypse by yourself.
 * Be ready for anything.
 * Don't panic.

The Turnpike is pretty straightforward as far as chapters go, and is fairly easy, especially since it's the first chapter in the campaign. Particularly nasty Special Infected don't generally spawn here.

Campaign
At the beginning...
 * Bill will grab a pump shotgun.
 * Francis will grab a pump shotgun.
 * Louis will grab a pump shotgun.
 * Zoey will grab a pump shotgun.

Note: These are what the Survivor AI will usually grab.

All of the supplies for this chapter are right in front of you, like they usually are. There are two first aid kids on the ground and another two in the trunk of the police car, along with Tier 1 weapons. Due to the open environment of this level, it would probably be best to take the submachine gun. Once everyone is ready, head up the road, which will lead to a broken bridge (which somebody is bound to comment on). Don't try to jump off, because you'll either die or get stuck on the edge. Go around the sides of the bridge, and you'll see some ladders on either side of the opposite side. Climb up, and you'll see a tunnel. It's dark, but it's where you need to go.

Once you're walking through the tunnel, keep a look out for nooks and crannies, and check in any you find. There might be something nice inside, like pipebombs. Once you get to the end of the tunnel, turn to the left and go down the stairs. Go into the door straight in front of the stairs and look on the shelves, as there's usually supplies there, as well. If you chose to go the other way, it leads to the same area, though it skips the small room. Drop down below, grab some ammo and look around a little more. There's usually an extra pistol in a room down here. Once you have everything you need, climb the ladder to get back up and head up the hill. There's a safe house up there. Get inside, and get ready for The Drains.