Rule 1 of crashes, google what happened + your operating system, if it is happening to others they may have a fix you can do.
Rule 2 of crashes, if you don't see a lot of people screaming about the same problem at the same time you are then more than likely it isn't the game companies fault. If it is the game companies fault it is going to effect a lot of people as they are the source, if a door bug crashes your game it will most likely crash the majority of players games and not just yours.
Rule 3 of crashes, Assume it is your shit that has the problem before you assume that the company is at fault. If you spend less time blaming others for your problems the quicker you can do the things that need to be done to fix the problems on your end.
Rule 4, check for graphic card updates, run malewarebytes, superantispyware, yourvirus protection of choice, check your computer for registry errors, hard drive sector failures, reseat your ram, reseat your graphic card, blow the dust out of your computer, check its temps, check that your drivers are up to date, repair your windows, check for windows updates.
Rule 5, once you check your shit -THEN- you can assume there is something in Blizzards end that is the problem and contact them with details about your problems and don't be a dick to them just because you are pissy that you can't get your game on.
A simple google search for "black screen stillcan hear overwatch" came up with a few sites and you can see some resolutions to problems here,
http://www.forceclaw.com/tweaks/over...xes-amd-nvidia , you mileage may vary.