make sure you have CustomOST installed, if you do not, this is completely pointless!
put this into (wherever your payday 2 is)/mods/CustomOSTTracks
if that folder does not exist, make it
and boom, you are all done

credit to Petersbug (the animation studio not the city) who made the og cartoon and the song
and credit to Ksenon for the remixed version used in the assault phase (https://youtu.be/ZUi12738d00)