I've shut the single player and tried to open multiplayer. My computer has crashed just after i pressed launch button. I tried to open game but Steam asked me to download files again. Game file looks complete (50 GB) and game icon is still on desktop. But its not on Steam library list and cant verify game files on Steam. I'm not sure if its caused by computer or steam but the game is incomplete and there is chance that its caused by game itself of course.