From HLSW Wiki

Description

MutROHudPackage is used in certain games based on Unreal Tournament or Unreal Engine in general. It modifes HUD of players usually adding complete blackness of screen after player death - like in Counter-Strike.

Used on league servers during matches in RedOrchestra: Ostrfont 41-45.

Currently it has been implemented in the latest patch to RedOrchestra, so it is not needed as a running standalone version and it also has integrated the TeamReady addon.