Community Server with Custom Map

[zicci 1]

Someone pls halp,

I am hosting one of the only populated servers in the game right now and I have been racking my brain trying to implement a custom scenario/map. I have applied the proper formatting for the mod in my config JSON file to no avail.

"mods": [
            {
                "modId": "5A54BB9103829754",
                "name": "BARZAN",
                "version": "1.3.0"
            },

What am I doing wrong? Right now, I suspect it is not possible at the moment but I am persistent and want to deliver a fresh experience for my community.

Thank you for any clarification.