To do the third mission you need to go under the couch and then you will find the video for the computer put it in your invetory and then you will find a paper clip for the top of the place put it in your invetory and then go to the computer and put the video in the computer and turn it on and get the code and ask the guy at the vult to open it he will say its locked and then use the code to open it and then ask him to open it and then ask G to let you look in his droor and then take the first yellow key for the for the top of the place and then get your wrench to onn scroo the powwow boxand then put the paper clip in the powwow box and return to G for your next asiment and then get the light to see in the dark and then go to the boiler room and find a box and read the insructshins for the light game.