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=3825413064
Mods=DoubleWeapons
| Workshop item | Subscribers | Declared in |
|---|---|---|
| Double Back Weapons [two weapons on back]3825413064 | 20 | description footer |