the board near the wall where you spawn tells you where to find the keys. you need to understand what the symbols mean. 1st being only audible, 2nd emits light, 3rd can only be seen through camera, 4th is cold, 5th can be found in the locker. you need to find the code using the camera(it can only be seen through camera) and put it in correct order(wont reveal it cuz u need figure out something. hint: the instruction board colors)
thanks for playing!