Alright, so after searching through the comments over the past few days, I'll explain some stuff to all of you guys.

First off, I'm astonished that this map has +2,000 visitors, wasn't really expecting that.

Secondly, for most of you people asking how its horde mode when it was cancelled, let me explain. I've played the game since 2.0 and when the horde mode was released, I made two maps, one called Tight spots(my next horde mode, and will be much different) and this one, which was originally called Family Lodge. Around 3 or so years later, or a few weeks ago, I decided to revisit the map and use all(or at least most) of the new weapons, assets, etc since horde mode went offline.

Finally, as for all of you who are looking to unlock the final door, I have yet to implement the solution. HOWEVER, I do plan on adding in this solution somewhere in the near future.

Anyways, I hope this answers most of your questions for now, and I do plan on releasing more maps for 3.0, and not just horde maps either.

Feel free to ask other questions not answered here!