This error means Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files.

Information for troubleshooting Call of Duty: Vanguard launch issues

Something went wrong while trying to download a file. Please try again.

Troubleshooting your security programs can resolve issues preventing you from installing or using Blizzard software.

How to enable maximum download rate

Information on Battle.net regions

Information on error BLZBNTBNA00000008

Something went wrong while trying to launch the game. Please make sure it's installed and updated, then try again.

Information on error BLZBNTAGT00000BCE

We can't continue because there's a file named "Battle.net" in your ProgramData folder (C:\ProgramData\Battle.net). Please delete that file and try again.