Store Page
Left 4 Dead 2
All Discussions Screenshots Artwork Broadcasts Videos Workshop News Guides Reviews

Left 4 Dead 2

Store Page
Left 4 Dead 2 > Guides > Hiuman's Guides
56 ratings
Laser Sight Locations in Co-op
By Hiuman and 1 collaborators
This guide lists every laser sight spot that players may find in every official campaign in the default co-op mode.

The followings are three guaranteed locations for laser sights, while the rest are only potential:
Dead Center, chapter 2 (c1m2_streets): Inside Whitaker's Gun Shop.
Cold Stream, chapter 2 (c13m2_southpinestream): Before the explosive barrels that causes panic event.
Cold Stream, chapter 3 (c13m3_memorialbridge): Under the bridge, next to the M60 gun.

Use the guide index to navigate to a specific map.
   
Award
Favorite
Favorited
Unfavorite
Created by
ᴿᴱᴻᴱ™
Online
Hiuman
Offline
Category: Weapons
Languages: English
Posted
Updated
Sep 16, 2021 @ 5:51pm
Apr 12, 2022 @ 11:13pm
2,062 Unique Visitors
63 Current Favorites
Guide Index
Overview
c1 - Dead Center 
c2 - Dark Carnival 
--- --- c2m1_highway 
--- --- c2m2_fairgrounds 
--- --- c2m3_coaster 
c3 - Swamp Fever 
c4 - Hard Rain 
c5 - The Parish 
--- --- c5m3_cemetry 
--- --- c5m4_quarter 
c6 - The Passing 
--- --- c6m1_riverbank 
--- --- c6m2_bedlam 
--- --- c6m3_port 
c7 - The Sacrifice 
--- --- c7m1_docks 
--- --- c7m2_barge 
--- --- c7m3_port 
c8 - No Mercy 
c9 - Crash Course 
--- --- c9m1_alleys 
--- --- c9m2_lots 
c10 - Death Toll 
c11 - Dead Air 
--- --- c11m1_greenhouse 
--- --- c11m2_offices 
--- --- c11m3_garage 
--- --- c11m4_terminal 
--- --- c11m5_runway 
c12 - Blood Harvest 
c13 - Cold Stream 
c14 - The Last Stand 
Comments
c1 - Dead Center
c1m1_hotel
zero
c1m2_streets
3 potential + 1 guaranteed
c1m3_mall
zero
c1m4_atrium
zero
Total: 4 (four)

In Dead Center, there are no laser sights to be found except in chapter c1m2_streets .

There's one definite laser sight in the gun store. Most of the time, this laser sight should suffice as there is every tier-1 and tier-2 gun to pick up there so you have the best primary gun with the laser. Additional laser sight can spawn inside any of these three tents before entering the safe room to the next chapter:
c2 - Dark Carnival
---Dark Carnival---
c2m1_highway
7
c2m2_fairgrounds
32 (+1 inaccessible)
c2m3_coaster
47
c2m4_barns
zero
c2m5_concert
zero
Total: 86 (eighty-six) (+1 inaccessible)
--- --- c2m1_highway
In c2m1_highway , there are seven potential spots. There will always be a Hunting Rifle just before the motel so check if you can get a laser sight early on if you want a lasered tier-two gun. There is no other tier-two gun in this chapter.

--- --- c2m2_fairgrounds
--- --- c2m3_coaster
c3 - Swamp Fever
---Swamp Fever---
c3m1_plankcountry:
10
c3m2_swamp:
8
c3m3_shantytown:
8
c3m4_plantation
zero
Total: 26 (twenty-six)

c3m1_plankcountry


c3m2_swamp


c3m3_shantytown


c4 - Hard Rain
c4m1_milltown_a
c4m4_milltown_b
c4m5_milltown_escape
9
c4m2_sugarmill_a
c4m3_sugarmill_b
2
Total: 11 (eleven)

c4m1_milltown_a ; c4m4_milltown_b ; c4m5_milltown_escape

--- --- ---
c4m2_sugarmill_a ; c4m3_sugarmill_b
c5 - The Parish
c5m1_waterfront
zero
c5m2_park
zero
c5m3_cemetry
6
c5m4_quarter
17
c5m5_bridge
zero
Total: 23 (twenty-three)
--- --- c5m3_cemetry
--- --- c5m4_quarter
c6 - The Passing
c6m1_riverbank
11
c6m2_bedlam
14
c6m3_port
13 (+1 inaccessible)
Total: 38 (thirty-eight) (+1 inaccessible)
--- --- c6m1_riverbank
--- --- c6m2_bedlam
--- --- c6m3_port
c7 - The Sacrifice
---The Sacrifice---
c7m1_docks
6
c7m2_barge
10
c7m3_port
7
Total: 23 (twenty-three)
--- --- c7m1_docks
--- --- c7m2_barge
--- --- c7m3_port
c8 - No Mercy
c8m1_apartment
zero
c8m2_subway
6
c8m3_sewers
6 (+1 inaccessible)
c8m4_interior
4
c8m5_rooftop
zero
Total: 16 (sixteen) (+1 inaccessible)

--- --- ---
c8m2_subway

--- --- ---
c8m3_sewers: The one that collides with copy paper boxes is not accessible.

--- --- ---
c8m4_interior
c9 - Crash Course
c9m1_alleys
33
c9m2_lots
30
Total: 63 (sixty-three)
--- --- c9m1_alleys
--- --- c9m2_lots
c10 - Death Toll
c10m1_caves
4
c10m2_drainage
4
c10m3_ranchhouse
1
c10m4_mainstreet
8
c10m5_houseboat
4
Total: 21 (twenty-one)

c10m1_caves

--- --- ---
c10m2_drainage

--- --- ---
c10m3_ranchhouse

--- --- ---
c10m4_mainstreet

--- ---- ---
c10m5_houseboat
c11 - Dead Air
c11m1_greenhouse:
13
c11m2_offices
19
c11m3_garage
17
c11m4_terminal
12
c11m5_runway
1
Total: 62 (sixty-two)
--- --- c11m1_greenhouse
--- --- c11m2_offices

--- --- ---
upper office floor:

--- --- ---
lower office floor:

--- --- ---

--- --- c11m3_garage
--- --- c11m4_terminal
--- --- c11m5_runway
c12 - Blood Harvest
c12m1_hilltop
7
c12m2_traintunnel
22
c12m3_bridge
zero
c12m4_barn
zero
c12m5_cornfield
6
Total: 35 (thirty-five)

c12m1_hilltop

--- --- ---
c12m2_traintunnel

--- --- ---
c12m5_cornfield
c13 - Cold Stream
c13m1_alpinecreek
zero
c13m2_southpinestream
1 (guaranteed)
c13m3_memorialbridge
1 (guaranteed)
c13m4_cutthroatcreek
zero
Total: 2 (two, both are guaranteed)

Cold Stream, chapter 2 (c13m2_southpinestream): Before the explosive barrels that causes panic event.
Cold Stream, chapter 3 (c13m3_memorialbridge): Under the bridge, next to the M60 gun.
c14 - The Last Stand
c14m1_junkyard
3
c14m2_lighthouse
3
Total: 6 (six)

--- --- ---

c14m1_junkyard

Under the roof after the vehicle garage next to the pitchfork.








In the security post where the generators panic event occurs.








On the sink table in the house nearest to the safe room.








c14m2_lighthouse

On sink inside the room of the tower near the chest with an AK-47 and a Magnum Pistol.








On the back of the pick-up truck just after dropping from the watch tower, next to the pitchfork.








Inside the lighthouse room with the broken spiral staircase.
19 Comments
< >
dsaS Nov 11, 2023 @ 11:37am 
https://youtu.be/AnVDEHDpDI4
Hiuman  [author] Sep 25, 2021 @ 4:26pm 
You're right. According to these nuts (https://www.dropbox.com/sh/ijaxyb71k5wfdyq/AAC7AKGQHjdbGEecWwGE3cEra?dl=0) , some spots can either spawn a laser sight or an ammunition upgrade pack.
eatingcookie Sep 25, 2021 @ 9:03am 
Not sure if anyone knows this already or not, but laser sights spawn where incendiary and explosive ammo spawn, which could probably mean it has a 1/3 chance of spawning in place of any ammo upgrade.
ᴿᴱᴻᴱ™  [author] Sep 24, 2021 @ 7:36am 
@Hiuman: I read through decompiled maps (vmf) via a PHP script and just output keyvalue data from the entities. You can open up these nuts with every text editor.

c3m2 for instance...

{ classname = "upgrade_spawn", laser_sight = 1, spawnflags = 0, upgradepack_explosive = 1, upgradepack_incendiary = 1, origin = Vector(-7880,5412,15), id = 1757181 },

you could get to the location with setpos -7880 5412 15 for instance.
Hiuman  [author] Sep 24, 2021 @ 7:20am 
Firstly, of all campaigns, there are three guaranteed spots for laser sights: one in Whitaker's store and other two in Cold Stream. Secondly, in some chapters (as you can see in the spot counts) some chapters will never have a laser sight. In those chapters, one can assure that they'll never found any laser sight so think of it as an advice to not bother looking for one in chapters where you can read the "zero" in the counts tables.

And note that in ᴿᴱᴻᴱ™'s comment, he has shown that he pinpointed the specific locations of all the possible laser sights. I don't personally know the technical methods of finding the possible laser sights (besides being lucky); but ᴿᴱᴻᴱ™ knows a way (I don't know exactly how but as I read the files he shared, I'm convinced), while Salakirby can pinpoint specific possible locations by using a map editor for Source-engine games.

All in all, you can no longer say that "it's impossible to pinpoint a specific location."
Dagainz Sep 24, 2021 @ 6:41am 
But this is pointless. They can spawn anywhere and it's impossible to pinpoint a specific location other than the Whitaker's store. They might not even spawn at all during a campaign.
Hiuman  [author] Sep 23, 2021 @ 10:50pm 
Thank you very much, ᴿᴱᴻᴱ™. This will surely help us complete the guide.
ᴿᴱᴻᴱ™  [author] Sep 23, 2021 @ 9:52pm 
Hey, here you find all possible Laser locations. Feel free to add them to your guide:

https://www.dropbox.com/sh/ijaxyb71k5wfdyq/AAC7AKGQHjdbGEecWwGE3cEra?dl=0
scarecrow Sep 23, 2021 @ 12:59pm 
real girthy dick energy individuals use naked reticles >:)
Salakirby Sep 22, 2021 @ 9:49am 
Go ahead and accept my friend request, I know how to give you every guaranteed Laser Sight spot in the game and I can help you out ^^