Just to make sure since your title says 'steam'; do you want to host on SWBFspy or Steam?
If SWBFspy, Are you using the dedicated server software?
edit: I think you are using the dedicated server software. I don't think norender is a valid command for that. norender is for the disk version so that the graphics don't show up when hosting a dedicated server with the disk version.
If SWBFspy, Are you using the dedicated server software?
edit: I think you are using the dedicated server software. I don't think norender is a valid command for that. norender is for the disk version so that the graphics don't show up when hosting a dedicated server with the disk version.