You can see Doom 2 cover art hidden inside the Doom Eternal soundtrack

Composer Mick Gordon unfortunately probably won't come back to work on future DOOM projects, since there were some behind the scenes things that made him end Bethesda part ways.

It's a shame and definitely a big loss for the series since his music was a big part of the atmosphere, and helped a lot to set the tone of the whole game.

Besides his great music, Gordon was also known to put little easter eggs inside his tracks. Yesterday Redditor SlavWatch discovered a spectogram at the end of the song "Welcome Home Great Slayer" from DOOM Eternal soundtrack. A spectrogram is a visual representation of the spectrum of frequencies of a signal as it varies with time,  Wikipedia explains.

What's so special about this particular spectogram is that it shows Doom 2 cover! SlavWatch shared his find, and you can see it for yourself in the picture below:

This is not the first time that Gordon is doing something like this, and for the DOOM 2016 soundtrack, he had things like "Jesus loves you" backwards-tracked in it, and images of a pentagram and the number of the beast visible in spectographic visualizations.

You can listen to the song below, and, as PC Gamer suggests, you can use Sonic Visualizer playback software, to find to cover photo yourself!