Running Darkness Falls on a server

[Sjustus548]

I'm running a server thru Nitrado and I'm wanting to try out Darkness Falls with some friends.  Do all the players need to have the Darkness Falls files installed or is just installing the files on the server good enough?  I haven't tried any of these big mod packs with 7 Days yet so I'm not quite sure what is required.  Any help would be greatly appreciated.

 

[bdubyah]

Everyone needs to have it installed. 

 

[Sjustus548]

Everyone needs to have it installed. 

Thank you for the help.