Adds a new custom heist tracks with a few songs from SMT IV.
Stealth: https://www.youtube.com/watch?v=DjQspoLdhI4
Control: https://www.youtube.com/watch?v=qeIhLn3-NDk
Anticipation: https://www.youtube.com/watch?v=KHhpFGmmUMU
Assault: https://www.youtube.com/watch?v=EcZHm4VllDs