zuhhh secrets

zuhhh is a map by nipper and i was wondering if anyone had found out how to solve the cube yet? and if you have solved the cube what happens after you solve it? if you havent played the map yet the map can be DL’d here http://www.garrysmod.org/downloads/?a=view&id=13443 i cant figure out the cube thing and i was hoping somone here had figured it out.

Just do it in singleplayer and no clip you have automatically downloaded it