Standard instance deleted!!! Need help! *SOLVED*
Omg darn it!
I somehow, by an accident, replaced the departure_logic instance with a normal brush!!!
The brush got saved with the instance name and overwrited it!
How do i change it back? Can i download it???
I tried copying from another instance folder! It didnt work
Someone can upload that instance here, or then re-installing Authoring tools. And if you copy instance and replace old one, you should restart hammer to get new version of it to work(I had to do that when I did something terrible).
PS: I can upload the instance later today when I got time, unless someone else does that first. 
http://www.lpfreaky.nl/departure_elevator_logic.vmf
Good luck with it 
Good luck with it
Thank you both! I will try verifying my game cache first! If it doesnt work i will try download it 
You guys are awesome!
EDIT: YES IT WORKS VERIFYING THE GAME CACHE!
good luck mapping your maps then! ^^