L4D2: Buried Deep Gameplay 1

I'm currently making Music in that map, so i'm slowly changing it into NIKKE Theme ost.
This was my 1st try of it to see if i missing something or wanted the change things. Since this has a lot of stuff, I'm going to change a few thing.
few music wasn't added is mostly because i wanted to added more things and haven't gotten the music files yet to place it into the maps
so I'm going to add more gameplay to slowly adding the progress while making it
I'm leaving the Combat ost because its sound nice