Custom Mods and Maps are supported in Insurgency: Sandstorm via mods.io. Please use this basic guide to get started using custom mods more in-depth information can be found at mod.io Server Admin Guide
To get started you will need a mod.io account, once you have signed in, click your username as the top right, and click API Access from the left navigation.
OAuth 2 Management > Generate Access Token, enter a name to give your token and give it read access and click
Once the token is generated you will need to copy it to your game servers
Engine.ini. Paste the following into
TOKEN HEREwith your access token.
Next you will need to specify which mods you want to add to your game server.
mkdir -p Insurgency/Config/Server
You can also specify your own
ModList=MyCustomModList.txtor adding the mod id's to your start parameters using
txtfile you will need to specify each mod ID line by line. The mod ID can be found on the mods details page at mod.io. Once restarted the mod will be available to use.
mod ID: 94277
To use this custom map you will need to add it to your mapcycle and if required, your default map
MapCyle.txtand add the custom map to your mapcycle.
Once the server is restarted the custom map should be available on your game server.