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Arma 3 Generic Guide

This article sets out some key basic information for running an Arma 3 server on AMP. This article assumes that the “Generic” template is being used, not the CubeCoders official module (ARMA III, which is now legacy).

1. Dependencies on Windows​

Arma 3 requires the following dependencies on Windows to be installed:

2. Ports​

Arma 3 uses (or reserves) a number of ports, which are allocated accordingly in AMP:

  • Game Port: 2302 UDP by default
  • Query Port: 2303 UDP by default
  • Steam Port: 2304 UDP by default
  • Reserved Port: 2305 UDP by default
  • BattlEye Port: 2306 UDP by default
  • RCON Port: 2307 UDP by default

At least the first three ports need to be port forwarded (if you’re on a NAT network). Also forward the BattlEye port if using BattlEye on the server.

3. Settings​

Almost all settings that can be configured in the server’s config file, as listed here, are included in AMP’s UI.

AMP uses a file called AMP_server.cfg to control Arma 3’s settings. This file is in the server base directory. Don’t edit server.cfg directly - AMP will overwrite it.

4. Mods​

4.1 Installing/updating​

The “Steam workshop items” option under the SteamCMD and Updates menu is used to download and update mods on the server.

4.2 Loading​

To load mods, they need to be specified either under “Load Mods” or “Load Server Mods” in the Arma Server Settings menu.

4.3 Signature verification​

By default, AMP enables addon signature verification. To permit mods, the relevant .bikey file needs to be added to the keys directory in the server base directory.

5. Server binding​

By default the Arma 3 server is bound to the application IP binding set for the instance. This is normally 0.0.0.0 (all interfaces) unless it has been changed under New Instance Defaults.

6. Headless clients​

Headless clients can be used to offload AI calculations from the Arma 3 server, helping improve performance by spreading the processing load across more CPU cores.

7. Creator DLCs​

Creator DLCs are additional content for Arma 3 servers, created by external developers but published by Bohemia Interactive.

To load a Creator DLC on your server:

  • In the SteamCMD and Updates menu, select Creator DLC Build under “Server Branch”.
  • Click Update on the Status menu page to install the Creator DLC build.
  • Under “Load Mods” in the Arma Server Settings menu, add the relevant DLC code to load the DLC when the server starts.