Alien Dynamic in the Film

If the Alien was originally an insect that impregnated an Engineer, and the Engineers bred the Alien to be an evil bio-weapon, isn't it possible that the Alien could be bred for good? I think it would be an interesting battle between good and evil Aliens. The Prometheus mural included an image of what appeared to be an Engineer and a subservient Alien dog-like creature. So was the Alien once obedient, loyal, and kind like your beloved dog? 

Interesting theory. I think maybe there may be a show down between the white xenos and the black one, or the organic xeno in the poster, and the bio-mechanical classic alien

I'm looking forward to adding a two or three more variants to the Xenomorph library! I think it would be cool if in a future sequel we see Xenomorph Prime and the Red Xenos

I think the different types will be fighting each other.

and what if some of the Xenos are exposed to the black goo....after the fact? 

Im very curious about the acid for blood or is acid pockets in the organism as a deterrent .

We really cant tell.....

It depends how they are connected... i.e Xenomorphs can communicate... but so could the Alien R Queen and New Born despite being a Hybrid.

I would assume vastly different evolutionary paths would lead to them not getting along.... so while Man and Apes can interact.... Man and other Creatures its more different due to the Genetic Differences.

As far as being used for Good... it depends if they are programmed some way...

The Franchise hints to me there Programing is however instincts and the Agenda to Procreate...

I think controlling them would be as difficult as maybe controlling Giant Ants if say we managed to experiment and ended up producing 5ft Ants...  I am sure a outbreak of these Ants would well see us as Canon Fodder.

My guess is that it depends on how they are programmed to interact with other life forms. They could try to interact with other species or leave them alone. The closest we have come to seeing this is probably the newborn and the queen in AR (they seemed to be different enough compared to each-other).

Alien Isolation Game, the Xeno does not bother with the Synthetics its not interested in them...... 

I supposed unless threatened?   The Queen took care of Bishop though..

So i think the Whole Organism, has one Purpose.. to Procreate its Species... by needing a Organic Host/Material

If there is indeed white xenomorph like creatures, that could mean they are pure and organic just like the sacrificial engineer. Somehow the black goo is involved in creating the biomechanical xeno and the engineers on lv-233 used that same black goo tech to upgrade themselves. (Bio pressure suit).