Abonner for at downloade
Black Mesa Alpha 5 Redux

The Alpha 5 maps from 2006, made for sandbox.
REQUIRES COUNTER-STRIKE SOURCE
This addon includes:
-Anomalous Materials
-Office Complex
-Office Complex (Pre disaster)
-We've Got Hostiles
-We've Got Hostiles (Pre disaster)
-Forget About Freeman
-Forget About Freeman (Pre disaster)
-Ai Nodes
-Cubemaps
-Icons for all maps
All of the textures should be in the materials addon but if some don't work, I'd recommend downloading this:
https://steamproxy.net/sharedfiles/filedetails/?id=2835530421&searchtext=
The maps are found in the Roleplay section.