I have finally released Forsaken Overlook now that it is finally finished, and I have posted a postmortem of it here, which you could also find bundled in its archive in plain-text (although it would have 100% less screenshots and general eye-candy).
Forsaken Overlook was created in the end of 2012 into 2013 for a project headed by Brian "Snakes" Knox called the "Secret Santa Imitation Project." For this project, map authors in the Doom Community were told to create a map in the style of another author, but you were assigned one at random out of the pool of participants.