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To add a mission to an Arma 3 server, upload the mission’s .pbo file to the mpmissions folder with Files > Upload, then add it to class Missions in server.cfg with template set to the file name without .pbo, for example template = MyMission.Altis;. Restart the server. Admins can also switch missions in game with #missions.

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Before you start

  • Get the mission as a packed .pbo file, for example MyMission.Altis.pbo. The part after the dot is the map (here Altis).
  • If the mission needs mods or a Creator DLC map, install those first. See install mods.

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How to upload a mission

1

Stop the server

Stop the server so it doesn’t hold the mission list.
2

Open mpmissions

Click Files and open the mpmissions folder. On a new server it only holds readme.txt.
3

Upload the .pbo

Click Upload and choose your .pbo file. Keep the file name exactly as it is.
4

Add it to server.cfg

Go back to the root, open server.cfg and add the mission to class Missions (see below). Click Save Content.
5

Start the server

Start the server. The first mission in the list loads when the first player joins, or straight away with Auto Initialize Mission on.

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How to add the mission to class Missions

The default server.cfg already has a class Missions block with two built-in Zeus missions. Replace them, or add your mission as another class. Each mission needs its own class name.
With more than one mission class, the server runs them in order. Add randomMissionOrder = true; outside class Missions to pick them at random.

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How to change mission in game

  1. Log in as admin with #login yourAdminPassword. See become admin.
  2. Type #missions to open the mission list, or #mission MyMission.Altis to load one directly.
  3. Use #restart to restart the current mission.
To limit which missions admins can choose, add missionWhitelist[] = {"MyMission.Altis"}; to server.cfg.

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How to keep the mission running with no players

Set persistent = 1; in server.cfg. The mission then keeps running when everyone leaves (missions with base or instant respawn). Turn on Auto Initialize Mission on Startup to start it without waiting for a player.

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Frequently asked questions

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Can I use a mission I made in the editor?

Yes. Export it from the Eden editor as a multiplayer scenario, which gives you a .pbo file, and upload that to mpmissions. The server’s own readme.txt in that folder says exported multiplayer scenarios and downloaded custom scenarios go there.

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Why does my mission not show up?

Check that the template matches the file name exactly (without .pbo), that the file is in mpmissions and that all mods the mission needs are loaded. Then restart.

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Can I upload an unpacked mission folder?

Use a packed .pbo. It is the format the Bohemia Interactive wiki uses for custom missions, and players download it when they join.

Arma 3 server guide

Every Arma 3 page in one place.

server.cfg explained

Every important server.cfg line.

Admin commands

#missions, #restart and more.

Custom difficulty

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File Manager

Upload and edit files.
Tested by the FREAKHOSTING team on our Game Panel on 31 October 2026 (Arma 3 dedicated server 2.22). server.cfg syntax checked against the Bohemia Interactive server config page. Steps may differ slightly if the game changes.

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Last Updated: October 2026