Dedicated server guide

Call of Duty: Modern Warfare 3

Manage mw3server with AlphaGSM. Choose a runtime supported by the recorded module capabilities.

Authentication required · Support evidence: 2026-10-16.

Runtime familywine-proton

Declared runtimes: Docker or a Linux host process. This module declares the Wine/Proton compatibility family.

Network bindings

27016/UDP, 27016/TCP. Named port values remain unknown; review the game guide and configuration for additional requirements.

Mods and plugins

No mod support is declared in this snapshot; review the game guide before adding mods.

Backup hook

A module-specific backup hook is declared. Review the game guide for its scope, restore procedure and shutdown requirements.

Choose a supported runtime

Linux and Docker quickstart

Authentication is required before installation; follow the game guide for credentials, ownership and login prerequisites.

Docker

Complete interactive setup and review game-specific configuration before starting the server. Authentication is required before installation; follow the game guide for credentials, ownership and login prerequisites.

Start the Docker manager ./alphagsm-docker start
Create the game instance ./alphagsm-docker my-mw3server create mw3server
Complete interactive setup ./alphagsm-docker my-mw3server setup
Start the game server ./alphagsm-docker my-mw3server start
Check the instance status ./alphagsm-docker my-mw3server status

./alphagsm-docker start
./alphagsm-docker my-mw3server create mw3server
./alphagsm-docker my-mw3server setup
./alphagsm-docker my-mw3server start
./alphagsm-docker my-mw3server status

Host process

Create the game instance ./alphagsm my-mw3server create mw3server
Complete interactive setup ./alphagsm my-mw3server setup
Check the host prerequisites ./alphagsm my-mw3server doctor
Start the game server ./alphagsm my-mw3server start
Check the instance status ./alphagsm my-mw3server status

./alphagsm my-mw3server create mw3server
./alphagsm my-mw3server setup
./alphagsm my-mw3server doctor
./alphagsm my-mw3server start
./alphagsm my-mw3server status

This guide covers the mw3server module in AlphaGSM.

Status

mw3server is currently ENABLED (AUTH).

Before setup, authenticate Steam or SteamCMD with an account entitled to Modern Warfare 3 dedicated server app 115310.

Requirements

screen
SteamCMD runtime libraries (lib32gcc-s1, lib32stdc++6)
Python packages from requirements.txt

Quick Start

Create the server:

alphagsm mymw3serve create mw3server

Run setup:

alphagsm mymw3serve setup

Start it:

alphagsm mymw3serve start

Check it:

alphagsm mymw3serve status

Stop it:

alphagsm mymw3serve stop

Setup Details

Setup configures:

the game port (default 27016)
the install directory
SteamCMD downloads the server files

Useful Commands

alphagsm mymw3serve update
alphagsm mymw3serve backup

Notes

Module name: mw3server
Default port: 27016

Server variables

After create mw3server, inspect or change these with set:

alphagsm myserver set --list
alphagsm myserver set KEY --describe
alphagsm myserver set KEY VALUE

Key	Aliases	Type	What it does
`dir`	—	string	Install directory for the server.
`exe_name`	—	string	Server executable filename.
`hostname`	servername, name	string	The advertised server name.
`maxplayers`	users	integer	The maximum number of players.
`port`	gameport	integer	The game port for the server.
`startmap`	map, gamemap, level, world	string	The startup map.

Developer Notes

Run File

Executable: iw5mp_server.exe
Location: <install_dir>/iw5mp_server.exe
Engine: Custom (SteamCMD)
SteamCMD App ID: 115310

Server Configuration

Config file: See game module source
Max players: 18
Template: See server-templates/mw3server/ if available

Maps and Mods

Map directory: Check game documentation
Mod directory: Check game documentation
Workshop support: No

Configuration templates

Reference files from this source revision. Review paths, passwords and game-specific settings before use.

Share your server

Sector Alpha server directory

When your server is ready, you can publish its connection details and community information on Sector Alpha. Review your listing and keep the information current.

Find a community

Browse the directory for game servers and their published connection details.

Browse server directory

Publish your server

Prepare a name, address and description for your listing.

Publish a server

Manual server sharing instructions

Frequently asked questions

What support evidence is recorded for Call of Duty: Modern Warfare 3?

Authentication required. Authentication is required before installation; follow the game guide for credentials, ownership and login prerequisites.

Which runtimes can run Call of Duty: Modern Warfare 3?

Declared runtimes: Docker or a Linux host process. This module declares the Wine/Proton compatibility family.

Which ports does Call of Duty: Modern Warfare 3 use?

27016/UDP, 27016/TCP. Named port values remain unknown; review the game guide and configuration for additional requirements.

Can I add mods to Call of Duty: Modern Warfare 3?

No mod support is declared in this snapshot; review the game guide before adding mods.

How should I back up Call of Duty: Modern Warfare 3?

A module-specific backup hook is declared. Review the game guide for its scope, restore procedure and shutdown requirements.

Source and support evidence

This guide mirrors AlphaGSM’s upstream documentation at 32cef5ba9e03053c8e461fffa0ba133b160b528d. Commands and prerequisites can change. Check current support notes before installation.

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