cs_retreat
http://www.lanmaniax.com/maps/html/cs_retreat.htm
Nice looking, but
a) too small
b) the insides of the house are too plain (IMO)

That being said -
while the house itself that houses the hostages is too small, there is a large outdoor area. Kind of makes me think of cs_harvest, but not quite as large.

I think the main problem is that the inside of the house is just so bare... empty. A few props, but it looks like the maker just went "uh... we need a few shelves and a couch.

SO maybe someone else could look at it to see if I'm right, but I think this map is a close, but no cigar for our play.