How to change your BeamMp Server Map

Login to Kinetic Panel.

Stop the server.

Open Settings.

Find the map box.
Default options

/levels/gridmap_v2/info.json
/levels/automation_test_track/info.json
/levels/east_coast_usa/info.json
/levels/hirochi_raceway/info.json
/levels/italy/info.json
/levels/jungle_rock_island/info.json
/levels/industrial/info.json
/levels/small_island/info.json
/levels/smallgrid/info.json
/levels/utah/info.json
/levels/west_coast_usa/info.json
/levels/driver_training/info.json
/levels/derby/info.json

Choose one of the listed or a modded one.
Levels are located in the levels folder.