Hello,
I got rid of the BLZBNTBNA00000012 error by moving my Call of Duty Modern Warfare (which is in another file called CrappyGame) file closer to my D Drive to D:\CrappyGame\ModernWarfare and changing the compatibility of ModernWarfare.exe and Battle.net client to “run this program as an administrator”
However, when I open the game it seems to run normally at first, but it’s mostly black for a few minutes before crashing and giving me the “Dev Error 6034 [ww_ui_boot.ff]” notification.
I’ve done a scan and repair 4 times now, I’ve also gone to cmd and have done the sfc /scannow command to have windows find and repair any damaged or corrupt files.
My Radeon RX 580 series (which is recommended by Activision) is completely up to date as well as my Disk Drives.
If anyone knows how to solve this issue please help.