This is a custom zombie model I made (note: It works best with the HD pack.)
To use these models as a replacement for your normal zombie models; open your steam library and go to Half-Life. Once you are there, right click the Half-Life tab, move your mouse to "manage" and click on "browse local files". Once there, create a folder called "valve_addon".
Then, place the "models" folder in there. To enable the models, open Half-Life, go to the options menu, click on video, then click the box that reads "Allow custom addon content".
I also added sleeves to make it more lore friendly as Hl2 zombies have sleeves.
Thanks and have fun :)
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