This is my FGD file for Counter-Strike. It has all the latest Entities and a few modifications of my own. You will need this file if you want to use Texlights (textured lighting). A few other various entities for compiling are also included.
This is a Professional level Mapping FGD.
Copy this file into your FGD folder in Valve Hammer Editor, example directory:
C:\Program Files\Valve Hammer Editor\fgd\counter-strike