Helldivers 1 has such an amazing soundtrack by Johan Lindgren that I genuinely like more than the second game, so I really felt like porting some of the music into PD2!

Tracks used:

Stealth - Mission Select
https://www.youtube.com/watch?v=m58pfeeObnY

Control - Illuminate D5-D8
https://www.youtube.com/watch?v=7dQefFWJveM

Anticipation/Assault - Illuminate Great Eye Boss Music
https://www.youtube.com/watch?v=vfla_rBmXDM

Alternate version uses D5-D8 for Anticipation/Assault instead!