Flechette and Manhack Gun don't work on dedicated server

I’ve recently set up my own dedicated server for my clan on steam. I’ve already downloaded all the content I could using the HLDServer updater tool. But, it seems I’m still missing some content. I cannot get the Flechette or Manhack Gun to work on my dedicated server. I’ve tried playing a single player game and had no problems there. I’ve already used GCFScape to export HL Episodic content to my server, whiched fixed an issue I had spawing the hunter. I would greatly appreciate any ideas on how to fix this.

The flechette and manhack guns are 2 admin weapons. Make sure you are set as admin on your server

Thank you for the help