The mixtape is supported by five singles; "Skate Cans", "Pe$o", "Breaking News", "Black Tuxedos" and "Mind of a Stoner" featuring Wiz Khalifa.

[1][2] MGK would later reveal that Pusha T, Kellin Quinn, Dub-O, Meek Mill, French Montana, and Wiz Khalifa would be featured on the project.

On June 25, the "Operation: Complex Catastrophe" countdown hit zero and Machine Gun Kelly released a new track titled "Breaking News" along with an accompanying music video onto YouTube.

Shortly after the release, Machine Gun Kelly would tweet: "To media and to fans: Black Flag is my 2nd ALBUM, please consider it and treat it as such.

"[10] Physical copies of the project will be available in limited quantities on Machine Gun Kelly's upcoming tour in promotion of Black Flag.

On June 27, Machine Gun Kelly personally uploaded, edited, and commented on the lyrics for all the songs featured on Black Flag for the website Genius.com.