When i get to Black Mesa East,i meet Dr.Mossman,then she brings me to the elevator and when the elevator comes she doesnt get in it!Even if i go first she still doesnt get in,she only stands there and looks at me.Whats wrong with her?:confused:
It must be a level script error. Just try loading saved game from before this level and everyhting should be fine.
Yes do what allen said if not try reinstalling or steam validate because one of your files might be missing
My advice would be to restart the level, see what happens.
Loading earlier level saved game is better since you'll get the ammo loadout and ammount of health and suit power from your own game, and not one set by game.