ok found some things out about the map, first the code to the music room is 241536 that one was easy to figure out. Now i have found that the map has at least 6 custom skins hidden on the map, 2 to 3 of them are at the tree/present teleporter. not sure if you push the presents in a certin order to unlock them or what but i know if you "use" on the presents it teleports you too a crate in the back of the map but if you touch the floor you go back to the room you started in. 2 skins i know, you go to the right to get and 1 to the left but there are bars in the way so its hard to do, maybe with a cute not sure. im thinking theres a combo you put in on the presents not sure what thow i noclipped and found those skins. i think you might have to go under those bars before hitting the floor or im not doing the combo right. going into the music room you can change the music, if you go up one level theres a lever, push the lever and the three presents fly to the secret room, you ride them there but i dont know what to do to get in, sounds like a breakable wall when shooting it but i have unloaded 400 or so rounds into it but no brake so not sure there, ohhh if you get the skins you tele to the top of the building at the boats. thats all i got so far if anyone knows more let me know here.