The engineers.

Ok everyone read up, here is what i honestly Think and believe. In the opening scene its quite obvious that the "ritual" engineer sacrifices himself on EARTH, why? Because you can obviously see his breaking down dna makes new dna/blood cells. "Evolution" On earth started from organisms in the water and from there all life evolves and would make sense. But he seemed like a peaceful harmless engineer, just by how he was dressed and acted unlike the hostile one at the end. But what beats me is why life on earth? What compelled/made him do it? Also it was a total different looking ship than the transport ships. A lot of qeustions i have Im hoping will be in the second prequel.  But the OTHER engineers seemed way different, i believe military Because the way the menacing ships looked, they all had bio suits, And tight bio skin suits (organic looking) They all had dangerous cargo, and the engineer at the end was WAY set on getting to earth, he woke up still  With a mission in mind like a soldeir mentality. He killed everyone there except shaw without hesitation and was Instantly getting in the pilot seat for earth. They had other planets and solar systems mapped up ready to go. Why? Maybe to destroy other life they mistakingly made on other planets. So what i think is that they are the masters of the universe, creating life, destroying life so on. But what KILLS me is in the ship all the bodies stacked up at the door were trying to hold something Back or other engineers put them there, id love to know, you also see a xenomorph carving on a giant black Door on the ship, meaning they obviously know about the xeno's. And what were they running from in the hologram? They all kept looking back as they ran, maybe a xeno? Idk i could go on forever, i loved the movie and thought it was awesome the engineers were human like and the original "space jockey" design was just a suit, very fascinating, maybe the bigger space jockeys are THEIR masters and wanted to look like them in the suits because he size difference from prometheus and alien are pretty noticeable. there has got to be another movie Leading up to the beggining of alien.  It just doesnt tie up because the original one  Eggs were being transported on the military ships and had a laser secutity system one of the crew members fell in so they obviously had a queen lay those, simply put. But prometheus is 30 years prior to the nostromo, so maybe the engineers Saw that the installation on LV-223 messed up then found the proto-xeno that came from the engineer then studied it and had THE XENOS be the weapon, like i said its endless of theories you can make with promethues, movie was A++.  Id love to see the second movie Maybe even explore more into the engineer's race because shaw was headed there unless david was lying to her to finish a study to go else where? Btw off subject how funny would it have been if the engineer played the flute riff from Jay-z's big pimpin HAHA sry random thought. Anyway what do yall think?