Add it to your server
In your server's .ini file (servertest.ini by default), add these to the existing WorkshopItems= and Mods= lines, separated by a semicolon (;).
WorkshopItems=3818337397
Mods=MissionSystem
| Workshop item | Subscribers | Declared in |
|---|---|---|
| Mission System3818337397 | 9 | description footer |