A Standalone, dedicated server is a definite MUST.
And for those who bang on about requiring a GSP, understand what you are talking about.
The current implementation of listen servers is a mess and is cumbersome for those who want to setup a proper server for themselves and their mates.
I have a rig at home which is used for hosting a minecraft, Killing Floor and a few other servers for friends. I have a good upload speed so runs fine.
It is cumbersome to have to be running the game client just to host a game, there is no need for the gui when running a server. I and others just want to setup a dedi server and run it on our systems and leave it at that and it allways be active.
PLEASE provide a dedicated server alongside the current listen server for those who need them.