I want to give you a SPOILER FREE "NOT YOUR GOLDEN PILLOW" guide to this mission.
Really quite simple.
2) Knowing this, it's time to look at the source code! woot~
4)If you take what I said in the first few steps, apply some common sense and logic, then you should have it all together now! If you don't, try this.
HOPE I DIDNT GIVE AWAY SPOILERS!!
Just trying to help :p