Impressive puzzle, more enjoyable with friends, especially in team of 4
This map took us more than 2 hours to play. Please be prepared as it can easily takes up to 3 hours if you're stuck with certain puzzle. The initial part is pretty weak and frustrating as you have to figure out and find things in the dark. It is more enjoyable once you got the light on. There are optional objective (the 3 medals and jades), which is quite interesting. Note that the first aid kit in that one room can be used infinitely, it just has a cooldown timer. I recommend playing this map with friends, unless you're a very big fan of puzzles.
Fun and notable map