The esf_default_sprites.zip file you have requested: Mods / Multiplayer / Earth Special Forces / v1.2.x / Backup Files / Earth's Special Forces Default Sprite Pack - 3.01mb 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:
Default ESF sprite pack. Usefull if you've replaced sprites and would like to back without reinstalling.