The nsv30b4patch.exe file you have requested: Mods / Multiplayer / Natural Selection / Releases / v3.0 / Natural Selection v3.0 Beta 4 - Client - 36.11mb 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:
The fourth beta client release of the action-strategy mod Natural Selection (version 3.0).Note: This version is an update. Beta 1 is required to be installed !!!