UPDATE:

REMOVED SPECS

INCLUDES WEAPON XML WHICH ALLOWS GRAVITY GUN TO WORK AS GRAVITY GUN AND SEND THINGS FLYING.

ADDED SOUNDS

INSTALL:

Drag Common and PC to C:Program Files (x86)Rockstar GamesGrand Theft Auto IV and drop and install other files with Open IV or Spark IV.

Gordon Freeman

http://www.gtainside.com/download.php?do=comments&cat=345&start=0&id=44455

Half Life 2 Police

http://www.gtainside.com/download.php?do=comments&cat=345&start=0&id=44456

Combine

http://www.gtainside.com/download.php?do=comments&cat=345&start=0&id=44457

Elite Combine

http://www.gtainside.com/download.php?do=comments&cat=345&start=0&id=44458