Missing script added

And now a missing texture was added. Sorry :P

Last file was a old file uploaded by mistake.

-New sky texture
-New puzzle (replaces the lift system in drainage area)
-New details for music puzzle to help player understand how to handle it
-Smokers tongue is blocked in finale when you get to the elevator

-Encounter with the tank at elevator platform was fixed.
-Clipping trough the elevator ceiling after killing the tank fixed.
-New model for sledgehammer.
-New puzzles and improvements for old items.
-If you jump into the vent in RPD bots will follow you (no more cutscenes for falling).
-Little changes for lightning
-Rubik's cube was removed due to game crashing
-Melee weapons bug (game crash) was fixed.

-Deleted some unnecesary files
-Different lightning on elevator platform

-Fixed the platform bug (players passing through the elevator ceiling)
-Added more blue herbs in chapter 3 for heal spider poison
-No more riot zombies (were causing crashes on the game)
-Due to the new knife I deleted the old one and now the crowbar is abailable in this campaign

-More fixes for navigation meshes
-Better reflections in shiny materials
-Platform where you fight "Birkin" before the lab is different
-A NEW AWESOME KNIFE

-Survival map updated
-More bugs fixed
-Little changes on the finale
-More details in every chapter

-Added HDR lightning
-Navigation fixes for bots
-Balanced infected spawns
-New models and animations
-Better world details
-Lower noise at the intro escene