Replaces some ambient music from the "contagion" folder

Replaces more ambient music from the "contagion" folder

Replaces the tank, jukebox, concert, parade float, merry-go-round, saferoom and credits music with mostly death/heavy metal songs

Replaces music from the cpmusic, glimpse, infection and undeath folders

Replaces music from the terror, the_end, witch, zombat and zombiechoir folders

Replaces the carnival shooting gallery and whack-a-mole music, and music from the bacteria, l4d2, pzattack, stmusic and tags folders