The esfpatchb123.exe file you have requested: Mods / Multiplayer / Earth Special Forces / v1.2.x / Releases / v1.2.3 / Patches / ESF Patch - 10.54mb 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 will patch your Earth's Special Forces Version from v1.2.2 to v1.2.3,This 1.2.3 patch is not really a patch for ingame bugs, but it does fix a map, and it will include a new map. You can join servers that still has the 1.2.2 version of ESF.