[delirium_trigger]

Is there a way to make it function similar to HLSS?

For example if you are not inside your server, and you type from your L4D2 Srcds Console (sm_say) it says your name is Admin to all the players in that server.

Is there a way to have the advertisement come as a selected sound played through microphone so that no downloading is required.

If this is possible the downloading would be unnecessary and long loading times would be eliminated. This could even work to be hooked with events to play sounds such as headshots, suicides, team kills, etc. Since this is sound only and not a visual mod, in theory, it should be able to work like HLSS.