It's Hardly a Mansion, more like a tiny house in the middle of no where, but never the less, it's stockpiled with explosives, guns, and all that other good stuff. So have fun and be safe. BEWARE THE FLAMINGO (this is just a l4d2 version of the swamp survival map)
This started out as a side project... and guess what, it still is. This is a pretty easy map. Getting 10 minutes or more is easy, except if you go outside like the real man! Also special thanks to Stelk for the poster.