This is a post from the founder of the "GMOD Codename Anomaly Investigation Team".

Id like to say that yes, this map is haunted. The name of the anomaly haunting this map is "Tallman". There is a book page talking about Tallman in one of the watchtowers. It explains that Tallman roams among the trees looking for children to eat, which is kinda ♥♥♥♥♥♥ up.

Me and a friend collected some pages and then I found Tallman somewhere in the map, but then it dissapeared.

Its not actually haunted, its all a scripted easter egg, but I still consider that as haunted in "GMOD Mythology" terms. Thats all you need to know, this is DarkSide360 signing off.