The Half-Life Steam update of January 26, 2013 didn't make everyone happy. Some players were unhappy that their models had been replaced with weapon models from the High Definition Pack.
For those who want to use the old standard models, here they are. Maybe someone simply wants to install the standard ones. The archive also includes the old weapon sounds.
The archive contains only weapon models; the old player models are not included.
Installation:
Copy the contents of the archive into the valve folder of your game and agree to replace the files. If there's a valve_russian folder besides valve, copy them there too.
Read more here on how to install Half-Life models
Download: