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=3830198210
Mods=SplitMap
| Workshop item | Subscribers | Declared in |
|---|---|---|
| Split Screen Fixes [B42.21] - Map & Respawn3830198210 | 8 | description footer |