The Glass Break Mod is the additional materials for "Window Destroyable Single Player" by RockstarBF2. Archive includes 2 new textures for windows and 5 glass explosion sound effect.
1 Downloan original addon Window Destroyable Single Player Moddb.com
2 Paste materials from glass break mod and replace original files
3 Add all files to Karkand level objects_client/server
4 If you have a older version of Karkand by RockstarBF2 in the archive you will find positions for all breakable glass, paste the positions of these objects into staticObjects.con