I just finished playing home and I felt like I should share my final conclusion.
I think Rachel was killed by Norman and the guy that I stumbled upon at the beginning when I woke up. Norman said Rachel should be the last one so they needed someone to blame and because Rachel and I drifted apart and she had a thing going on with Norman I was the perfect victim. Norman raped and killed Rachel at his home and dragged her back to my house where he hid her in the basement. Then he and his friend overwhelmed me and hid the content of my wallet in the woods where they previously killed 2 other young women for fun but they were seen by the guard and needed to kill him too. They brought me into the tunnels where they kept me drugged with the chemicals that I later found. Something must have gone wrong and I escaped. I went straight to Norman to kill this bastard. It was late at night as I broke into his house. I went up and got one of his guns. Then I went into his room and killed him while he was just getting up to face me. After that I went back to the tunnels and crawled through the air shaft and hurt my leg as I jumped down. On the way up to the house I must have lost my gun and picked up a knife. I killed the owner too and after that I must have been wandering around the house and the tunnels because I was still on drugs and after a while I passed out in the house.
Yep just got my Halo 4 limited edition art book. It is still unopened but I think that will change very soon. Also so far I have no clue what number it is but I am sure that it is fairly high.
I do love the artwork on the front and on the back. It looks a lot better than on my pictures :(