The Coaster

"This isn't very romantic."

- Nick "This water don't look natural..."

- Coach


 * For the actual in-game roller coaster, see The Screaming Oak.

The Coaster is the third chapter in the Left 4 Dead 2 campaign, Dark Carnival.

Summary
The Survivors must leave their strangely relaxing safe room, navigate an abnormally long Tunnel of Love and make their way towards Whispering Oaks' signature attraction: an all-wood roller coaster, appropriately named "The Screaming Oak." To Ellis' delight, the Survivors must "run The Screaming Oak" and survive a prototype gauntlet crescendo event to reach a chapter-ending safe house in a fairground queue-booth.

This is a very long chapter and one of the most challenging in the game.

Campaign Walkthrough
When starting from this chapter:


 * Nick will grab an Assault Rifle variant.
 * Ellis will grab a Sniper Rifle variant.
 * Rochelle will grab an Assault Rifle variant.
 * Coach will grab a Combat Shotgun variant.

They may also keep the weapons they were using from the last chapter. Having survived the sadistic fairgrounds players need to get ready for the next fiendish attractions: The Tunnel of Love and The Screaming Oak. As usual, it is time to select weaponry, heal and grab some ammo.

The safe room door opens onto a short flight of stairs leading up and then down to the start of The Tunnel of Love. This entire feature is packed with Common Infected intermingled with Special Infected (especially Spitters). A Tank or Witch might spawn; care must be taken due to the confined spaces of the Tunnel of Love.

Important: Ammo resupply is sparse in The Tunnel of Love (and even then only granted if The Director is so generously inclined), so Tier 2 weapons should be used when needed (although you will use it very much), so backtrack when you can back to the safe room to restock your ammo.

Players should look around the ticket booth area as at times ammo upgrades or even Laser sights can be found. Clear off the left side of the Tunnel of Love, as this is a hotspot for flanking attacks by Specials and a horde. Hordes can spawn behind the scenery in front of you or on the left side. Go to the right and keep proceeding, watching the scenery as Specials and Commons usually hide there. Keep moving and you'll find a busted set of pipes and two sceneries adjacent from each other. If a Smoker or Boomer has spawned, immediately watch for the pipes — they will always tend to wait there for a victim to catch. Go to your left to find a small room. This room usually contains Health kits or ammo upgrades. If you go to the right, you will take a small shortcut that takes you into a dark room. The room next to the dark room tends to contain an ammo dump or health kits.

The next area of interest is the maintenance room. A Witch will often spawn in its entrance preventing any attempt to sneak past her. A co-op team can either flatten her with a volley, a volunteer can go for a Cr0wn or (if playing solo) she can be startled and left to the AI Bots as the player runs off back down the tunnel. Players can also jump onto the engines and onto the catwalk to avoid the Witch if she spawns there. There is always a random weapon inside a small corner of the room near the stairs to get up.

The Director is either generous or miserly with supplies in the maintenance room. Usual places to look include the table under the stairs for a chainsaw or grenade launcher and under the pipes in the left rear of the room beneath the overhead walkway. Weaponry or ammo may spawn on walkway itself, near the control mechanism after going up the stairs on your right.

Entering the next room, clear off any Infected. There's also a Rescue Closet in there in case anyone has died for any reason. There's usually a pistol or Magnum, a Tier 1 or 2 gun and at times ammo upgrades or health kits. Go up to find a small maintenance room and behind one of them contains a dead person with an ammo dump, Gas can or Propane tank.

Specials will NEVER attack from behind, so throw a Molotov down in case you hear any Specials that are hiding down there. They cannot climb up, but the Commons can climb anything. The Horde, if one spawns, will also come from the hole, making it quite easy to repel. You may also hear a Witch or Tank, so immediately run to the fenced area when you drop down to avoid being mobbed and surrounded easily.

Immediately after the clean up down below, players should jump down together (thus preventing a Smoker from snagging a tardy player in the level above) and engage any remaining Infected to the left and right. If a team is carrying Gnome Chompski, toss him down the hole first so that he does not get left behind should a Special Infected intervene and incapacitate his carrier upstairs. At this point, players may wish to back up quickly to the shorter, closed end of the tunnel to clean up any Infected and to look into a large service alcove on the left next to the gate across the tunnel. Be aware this is usually a prime place for a Witch or Tank, with the Tank causing twice as many problems than the Witch but CANNOT punch the swans at you.

Players keep going through the lower level of the Tunnel of Love until a hole blasted in the wall is reached (one character may say, "Fresh air at last" at this point) leading to a room and the outside. Players need to be on guard as a Charger may storm in from this direction at this point. Check your left to prevent a flank attack and watch your right side, as the open area tends to either have nothing, a Witch which might have to be killed or even worse; a Tank. Once you leave on the right side, fresh weapons are found there, so restock up.

Important: The Screaming Oak gauntlet crescendo event is coming up and it is crucial that players be fully equipped with suitable Tier 2 weapons and reserve ammo. Players should avoid wasting ammo between this room and the start of The Screaming Oak run.

After leaving the room, players find themselves in a relatively open service area. A lighted building to the left attracts attention and houses a first aid station and supplies (often Laser Sights) in an adjoining room. On leaving the lighted building, a truck to the right should contain weaponry. Players should be careful as a Witch might, but unlikely, spawn inside the truck, making Explosive/Incendiary ammo or a Molotov needed to flush her out.

Immediately obvious to the left is The Screaming Oak roller coaster looming up behind a chain link fence. This is where ammo conservation must be paramount as the area underneath the roller coaster has a fair number of Common Infected loitering around. Access is gained by a section of bent fencing (which forms a "no-return" phase of the chapter). Survivors and bots can jump onto the bent fence at its lowest point.

Bearing in mind the need to conserve ammo, players should mop up under the roller coaster but be alert because a Tank may occasionally spawn and throw this good intention into disarray. However the Tank will have extreme difficulty getting to the Survivors due to the roller coaster, so the Tank will most likely do no damage at all, throwing rocks at the fence with miserable failures. However, getting too close to the fence will always result in a punch by him, but if you're not within his punch range but close enough, it is possible for the Tank to climb the fence and cause problems to the team.

Once everyone is ready and clustered around the starting gate, the event is triggered by operating the roller coaster switch on the wall to the right (in a co-op game, if everyone has an adrenaline shot this should be administered the moment the switch is thrown). The gate will fly open once the roller coaster goes past, whereupon players must sprint as hard as they can after it. Any Infected on the trackway will be flattened by the roller coaster; this is why tagging along as closely as possible behind it is a good thing to do during the initial phase of the run.

If a player is trying for the GUARDIN' GNOME achievement, one strategy to turn to face the chain-link fence and jump to throw Gnome Chompski over it because both hands must be free to fight the Infected during this Crescendo Event. The Gnome can be retrieved once the alarm has been switched off. Note that near the chain-link fence there's usually nothing, but on occasions throwables or even Ammo Upgrades can be found there. Another strategy is to carry the gnome up to the top of the coaster, and then at the first dip with the station on your lower right, jump and throw the gnome straight ahead into the station and it will land in the station exit area, giving you more hands free time, especially during the crucial moment of entering the station. It must be a careful throw, too high will result in the gnome irretrievably (a pipe bomb / grenade might move and/or lose it) placed. Too low and it may as well have been thrown over the fence.

This is a prototype Gauntlet Crescendo Event in the sense that Infected rapidly spawn to block players as they sprint along the roller coaster tracks and it foreshadows even more challenging setups in later campaigns. As you are attempting to fight your way through, if you have a Bile jar, use it by throwing it outside into the open area you just came in (not within the Coaster's area) to distract the Infected for a long time. Once you reach the billboard area, Infected will begin to spawn behind it, with a couple of them going in separate ways. You'll reach a steep drop, which Commons cannot climb up manually; they must form a "ladder" for others to get up. Specials also have this problem too, and can be easily taken care of. It is possible to use the supports to make a "god" position, but a lucky Smoker can pull you off, dealing heavy damage or possibly incapacitating you. Jumping from the steep slope will also cause incapacitation, so sliding down is the best option.

While an ammo pile will be passed by on the left of the tracks at ground level, players should divert to it only in dire necessity as time is of the very essence of this Event.

On reaching the switch to turn off the alarm, the first player to arrive must operate it and take a quick look for some pills nearby; they will probably be needed. Common Inflected will still be swarming at this stage and it is likely that one or two team members will have fallen behind. First arrivals should either go to their immediate assistance or sprint up onto the gantry (or bridge) spanning the roller coaster tracks; up here will be found an ammo pile and an excellent position from which to provide covering fire.

Depending on the team's health status, a healthy team can calmly mop up from the gantry and then proceed in an orderly fashion down to the safe room; if the team's situation is bad, the team should hustle to get to the safe room without delay.

In a final twist of horror, The Director will sometimes spawn a Witch right in front of the safe room door. Players should throw a Molotov and kill her if this happens to both slow her down (which gives the startler a huge advantage) or just let the Bots startle her.

Once inside the safe room and at the end of one the longest and most challenging chapters in the game, a successful player can bask in a sense of accomplishment before steeling oneself up to tackle The Barns.

Weapon Choices
Since much of the action involves masses of Infected at short and medium ranges and in confined spaces, Tier 2 rifles are a good idea.
 * Assault rifles: AK-47 > Desert Rifle > M16
 * Scoped rifles: Sniper Rifle > Hunting Rifle
 * Sidearm: Melee weapon > Magnum > P220 Pistols
 * Shotguns: Tier 2 Shotguns

The Survivors

 * When leaving the safe room, be wary of Chargers; a common tactic is for a Charger to charge the ramp leading out of the safe room, scattering everyone and bringing one back into the room.
 * If a Tank spawns in the first tunnel, try to stay in the docking area so you have room to move.
 * Remember: bullets penetrate the props in the side rooms of the tunnel. Open fire if you think you hear Infected hiding behind them.
 * When in the room after the maintenance tunnel with the hole in the ground, throw a Molotov at the wall behind you to repel attackers, then coordinate your descent so all Survivors fall in at about the same time.
 * If you fall off the tracks before the steep drop, there's a ladder you can use to climb back up.
 * Abuse melee weapons and shotguns to cut your way through the Infected during the Gauntlet Crescendo. However, keep at least two ranged weapons in case a teammate needs help from a distance.
 * Be wary of the first left turn you encounter when entering the first tunnel as it is common for Smokers to hide in the Swan at the back.
 * Try to run as close to the coaster as possible, as this will cause the coaster to clear your path from Infected. Use adrenaline shots if necessary, but remember not to get too far from your team members!
 * Try to backtrack if necessary. This can be useful as it replenishes your gun's ammo and if you face a gun which you don't like or want to use at all, you can have an advantage later on. However, this is useless in single player as there is a glitch where players can swap weapons of the same class (AK-47 swapped for M16 swapped for AK-47) for an instant ammo replenish.
 * There is a way to skip the Coaster Crescendo Event. If you are standing next to the alarm, face forward towards the direction you came from. All the way down, there are wooden rails you can carefully jump on in order to climb the coaster. It takes a lot of patience and a lot of tries as you have to plan your next jump carefully. If done right, you will be standing on the Coaster tracks, but you will find the path blocked. Be careful not to start the event if you're on the tracks because the coaster car will run over and instantly kill you or incapacitate you if you're lucky. To avoid almost-certain death, hop on to the railing near the invisible wall and wait for the car to pass you by.
 * There is also another shortcut during the coaster: as soon as you start the run, look to your left. You will see a fence, go higher on the ramp and turn around to walk onto it, walk over the small roof in front of you, go back down to the ground, and climb the ladder ahead. Be careful, though: using this tactic puts you in front of the roller coaster, which can run you over and kill you. Stop on the ladder and wait for the coaster to pass, but use extreme caution: the Infected love to attack you when you're on the ladder. This shortcut lets you skip roughly 20% of the coaster.

The Infected
In the second tunnel, if you go the wrong way, there's a climbable pipe leading back up to the room with the hole in the ground if you go into the small room. There will be a smashable wall there; use this to surprise stragglers who only expect an attack from the doorway!
 * Tank spawn locations include the first tunnel and the roller coaster, prior to the Gauntlet Crescendo.
 * If spawned in the first tunnel, try to keep Survivors in the tunnel as to limit their movement space, but be wary of Molotovs.
 * Survivors cannot climb back up the steep drop on the coaster. Try to incapacitate, pounce, constrict, or ride a straggler backwards so their teammates can't come back to save them.
 * When the Survivors go into the hole to go in the lower level, try to constrict the last person who goes down the hole; the other Survivors will not be able to help their fellow Survivor by being constricted. Make sure you can't be seen though as you can still be hit by a lucky Molotov or gunfire if you can be easily seen.
 * The coaster car can kill any Infected in its path. This includes Tanks, so keep an eye out if you try to ambush Survivors on the tracks.
 * It is possible to kill the entire team as a Charger in one charge. Simply wait at the top of the coaster, out of the way of the coaster cart itself. After the Survivors have activated the coaster and the carts go by, get ready to charge them as soon as they reach the top of the very first incline. If done right, you will grab one of them, and send the other flying backwards to be killed or incapacitated.

Behind the Scenes

 * Originally, the Coaster was supposed to be a survival level, but it was cut it in the final version because players would be able to stand on the wood that holds the track up and the Infected could not attack you.
 * The survival level can be accessed by the use of glitches.
 * Originally, the Coaster was supposed to crash causing the alarm to go off, which would have explained the fire in the Zombie Survival Guide, but it was cut.