It is believed that the climbable areas are unmarked climbing areas for the exclusive use of the Infected.

It was introduced in Survival Packthe first DLC for Left 4 Dead.

The goal is to survive as long as possible against both the clock and an endless horde of Infected.

Since this is a Survival mini-campaign, Valve was content to contextualize it with a purely nominal storyline: a road leading up to a chain-link fence and car with its headlamps still on are enough to suggest that the Survivors sought to escape to this remote area with perhaps an idea of signalling for help from the lighthouse.

According to writer Chet, this campaign explains what would happen if the Survivors took a wrong turn and attempted to call for help from this location.

The Last Stand is non-canonical as three of the four Survivors from Left 4 Dead appear in a chronologically later campaign: The Passing.

This gives the best line of sight and forces all of the Infected to climb up thereby slowing them down greatly.

Having more than one shotgunner is ill-advisedshotguns do not have a long range capability.

Care is obviously needed to group these supplies in one known spot to reduce the risk of stray gunfire igniting them and thus obliterating the team.

A sniper perched up on the walkway can throw these items down and use them opportunistically.

As noted above and below, camping snipers make easy targets for Smokers so they must keep moving and scanning the middle distance.

Firstly, the walkway railings are fragile and can result in players falling off the walkway and thus becoming incapped by hanging at inopportune times.

Secondly, players make excellent targets for Smokers who can almost effortlessly drag their victims off the light house and beyond any hope of rescue (especially when a Tank is in play).

Moreover, when Tanks arrive, players should move down to a lower level of the roof as this will give clearer lines of fire and nullify the blind angles and deadly drops associated with the walkway.

When a Hunter pounces someone he can be easily dispatched by a covering teammate as can a Smoker trying to drag a victim out, and a Boomer can only slime two Survivors at a time at mostthey are basically standing unprotected open sight during their attack phases.

When a Tank arrives, everyone in the group concentrates their shotgun fire onto the Tank and he should be dead in seconds.

To use the place, a Survivor would go down the hill until they encountered two trees sprouting in front of a rock.

Either the loner(s) will get killed or the other group members, so sticking together is essential, especially when the player(s) have reached the Silver Medal.

About halfway along the road to Riverside a road leads off to the right and ends in a padlocked gate guarding a fenced-in area similar to that featured in The Last Stand.

However this is purely coincidental as the territory behind that fence in Death Toll (if it actually existed in the map) would belong to The Drains.

No lake, sea or lighthouse could ever conceivably exist in that location and it is seen earlier in Chapter 2 from the other side of the fence which runs behind the parking area outside the train depot where Chapter 2s ending saferoom is located.

Although it is possible to find several locations along the fence that can be climbed as if they were ladders the opposite side remains inaccessible.

The only way for a human player to get on the other side is by idling and letting a bot climb or teleport over the fence.

Left 4 Dead 2 Non Steam Patch