The First ChildOvomorphMember15 XPSep-09-2013 7:33 PM
I have an idea, one that I have based after watching the alien franchise (including AVP, Prometheus, and predator films). I believe that the Deacon is far older than the engineers, and has a reason for trying to destroy everything in its path.
The Deacon symbolizes a demon or Lucifer like figure in this franchise.
In AVP, the first film, the Xenomorphs were called the serpents.
In Alien 3, the Xenomorph was called a dragon.
In Prometheus, it appeared crucified on a wall, symbolizes a anti-Christ like being.
Now from this we can see that the Xenomorph is completely evil, but what for?
The Black Liquid, which contains its DNA, was stored in vases with non-engineer writing on them. These ampules symbolize Pandora's box.
The Theory: I believe that the Deacon was one of the first beings to be ever made by the creator. Once the creator started creating new beings, it became enraged, feeling like a wife who has been cheated on. In anger, the Deacon started to kill and assimilate the other children of God. When this happened, the creator imprisoned the Deacon, since he is unable to destroy anything, inside vases on a mysterious planet.
The Engineers, who were going through a civil war over whether to help or destroy humanity, found these vases and revered them to be the element of God. Speaking in mythology terms, the god engineers over through the titan engineers, who were mostly elders who wanted to keep the old commandments of God. These engineers planned to use the liquid on humans ("Sometimes to create, one must first destroy) to bring back God, who seemed to have mysteriously abandoned them. By recreating God, they themselves would become the new Gods ("we are the gods now").
This plan ended poorly for them, and all the god engineers were possibly killed or defeated by the Deacon and the remaining Titans.
Thanks for reading!