what it says in the title, but I will add more to make it a worth while idea
in order for it to work, it will let you change the round start/end sound in the map settings
however, we should have more options, like the setting being seperated
example
round start sound [select]
round end sound [select]
hellhound round start sound [select]
does map use custom round sounds? ☑ (tick box)
the round start/end sounds you get are:
default, buried, MOTD, origins, shadows of evil and BO3 maps as of dlc 1