Persisting Bugs

I have a few bugs I keep running into on PC, including an almost entirely black screen at random in menu and in game, making the game unplayable from that moment on until restarted. I also noticed that if you open the menu before the game is fully loaded, the "exit to main menu" button will become unresponsive. And the last bug I have is that the game will become playable before weapon models, player models, and parts of the map have loaded. Thank you.