A mission’s name ends in the class name of its world: name.world. The Missions page shows the world’s own name under each mission and, where a world needs an expansion or a Creator DLC, the words “needs” followed by its name. Every player who joins must own what the chip names.
The worlds the page names
The last column is what the mission’s name ends in. A mission called MP_ZGM_m11.Altis runs on Altis. Use the ending in the file name, never the world’s display name.
These need nothing extra on the panel’s list:
| World | Ends in |
|---|---|
| Altis | altis |
| Stratis | stratis |
| Malden 2035 | malden |
| Virtual Reality | vr |
These need an expansion:
| World | Ends in | Needs |
|---|---|---|
| Tanoa | tanoa | Apex |
| Livonia | enoch | Contact |
These need a Creator DLC, and the row says “needs Creator DLC:” and its name:
| World | Ends in | Creator DLC |
|---|---|---|
| Weferlingen | gm_weferlingen_summer | Global Mobilization |
| Weferlingen (winter) | gm_weferlingen_winter | Global Mobilization |
| Cam Lao Nam | cam_lao_nam | S.O.G. Prairie Fire |
| Khe Sanh | vn_khe_sanh | S.O.G. Prairie Fire |
| The Bra | vn_the_bra | S.O.G. Prairie Fire |
| Bohemian Forest | stozec | CSLA Iron Curtain |
| Sefrou-Ramal | sefrouramal | Western Sahara |
| Normandy | spe_normandy | Spearhead 1944 |
| Mortain | spe_mortain | Spearhead 1944 |
| Anizay | tem_anizay | Reaction Forces |
| Lingor | lingor3 | Expeditionary Forces |
 |
What the server needs
An expansion world: the panel lists Apex and Contact only as a player need. It does not ask for a setting on the server.
A Creator DLC world: the server needs the DLC’s own files, and the DLC itself on the Mods list.
- Open the Startup page.
- Turn on Creator DLC Server Files. Its help says: “Download the Creator DLC’s server data (the creatordlc branch) at the next update, so missions on its maps and with its content can run. Every player still needs to own the DLC.”
- Save. The files download at the next update, so Automatic Updates must be on for that start.
- Open the Mods page and put the DLC’s folder on the list (import a Launcher preset that includes it), then apply the changes. Apply and restart drops everyone who is on, so warn them first with A message to everyone on the Players page. See Creator DLC server files.
- Restart if the server did not restart already, and only then add the mission to the rotation.
Pick a world
- Use a world the panel lists without “needs” when you do not know what your players own.
- Ask players to check the note before you add a mission on Tanoa, Livonia or a Creator DLC world.
- The map in the panel is drawn the first time the panel tools run a mission on a world. A new world shows after a few minutes.
If it does not work
- Players cannot join a mission on a DLC world. They need to own that DLC. The server also needs Creator DLC Server Files on and the DLC on the Mods list.
- A row shows no “needs” for a world you know needs a DLC. The panel only names the worlds in the tables above. A world from a mod shows no chip, so check what it needs yourself.
- A mission is missing from the list. See mission not in the list.
More about the game: Arma 3 servers.
Sources: Bohemia wiki: Dedicated Server