Not visible characters (redux) (Metro: Last Light)

Good afternoon. Downloaded the game Metro: Last Light - Redux, started, working but can not see all the people and creatures only gear for the people see also can not see me and the machine, tell me what the problem and how to solve ? Also at the very start not even seen the gate and only the inscription Metro. Windows 7 x64. I understand the only problem I have help who faced this problem.