Counter strike source? Name the map!

[Molemanmus]

Basically, im trying to find the name of this map. This is what I remeber from it:

1.You start off with a shotgun

2.You can shoot the lights out

3. Its a large square room

4.Eventually it goes dark when you shoot all the lights out

please help

cheers

 

[Molemanmus]

whats a homebrew map?

 

[Molemanmus]

its not an original map. Its a third party map.