Do you mean to name your map Bedroom - Destroyed?
Also, I can't tell exactly what your problem is because you have not provided enough information.
However, I can advise you to name your map "Map_BedroomDestroyed" and the mission as well, but in the mission info change the name of the map to "Bedroom - Destroyed" yet leave the save name of the map "BedroomDestroyed".
I hope that makes sense for you ;)