About [Hard-Mode] Random Car Alarm Controller
From Steam WorkshopThis add-on increases the difficulty of the game. Are you bored of doing the same thing every day in L4D? Then let's try a new challenge. This addon turns on/off alarms for cars on the map. You'd…
This add-on increases the difficulty of the game.
Are you bored of doing the same thing every day in L4D? Then let's try a new challenge.
This addon turns on/off alarms for cars on the map. You'd better forget about the familiar location of the alarm car. Because it's totally random
Default alarm car's alarm is turned off randomly.
- There may be no alarms at the always fixed alarm vehicle spawn location. (33% or less)
Cars that never sounded alarm are randomly changed to alarm cars. (33% or less)
- Only cars that can be hit and dribble by tanks are eligible. - The conversion probability is lowered the more cars there are on the map. (33% or less)
This addon also works in Versus mode.
Both teams can play a fair match under the same alarm vehicle placement conditions.
※ This add-on can be used alone, but it is also great to use with Random Object Spawner. (recommended)
- This script only works on your local server. - No action other than the add-on subscription is required to apply the script.

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Highlights
From source dataFootprint
Rated a light load on a server.
Last update
Its author last shipped an update 3 mo ago.
[Hard-Mode] Random Car Alarm Controller on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Left 4 Dead 2 servers. We download it from Steam Workshop, place it, and restart the server.
- Server load
- light
- Latest build
- 2026-08-01, released 2026-08-01
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Workshop |
From 1 recorded build of [Hard-Mode] Random Car Alarm Controller.
Dependencies
- Required: Manacat Common Library
- Required: ROS: Random Object Spawner (RNG)(BETA)
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
What kind of mod it is
From the catalogVehicles & ships
Cars, boats, aircraft, ships and other things to drive or fly.
Compatibility
- Game
- Left 4 Dead 2
Verified at the source
- ✓Steam WorkshopOfficial listing, checked 2026-11-01Open ↗
- ✓AuthorMANACAT, as published on Steam Workshop
- ✓LicenseNot published by the sourceFree
