Well thanks for the tips, but for me it is still not working. I have done everything. Defragmenting, restarting, re-installing/downloading from Steam, making sure it was a clean install and that all the files are good. I guess I just cannot go to that part and beat the game myself. I just googled that part of the game to see what happens and wow did I miss out. The first time you have an oppertunity to attack those things.
On another note I wish someone would make a mod so that you can at least have a gun with a few bullets in it. Not make it a full blown FPS but just something you can use to kill those things cause they FREAK ME THE F... OUT! OMG I wish there were means to get even, cause I am terrified while running from them LOL if I had at least a way of attacking them. It would be cool to vent the fear/anger on them
Also when you run out of ammo for it you can still use it to head butt them that would be cool. Maybe add a few puzzles involving the gun too.