The hl_hudsoundpack.rar file you have requested: Mods / Multiplayer / Natural Selection / Sound Packs / Marines / Commander / Natural Selection: Half-Life Commander Hud Sound Pack - 2.94mb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:
This pack replaces many commander related sounds with the original Half-Life 1 announcer system ones. However, the creator was unable to replace all of them because he couldn't find all the sounds needed. Simply extract this file to your NS directory, recommended to make backups first.