THE COMPANY'S MOTIVES

"I AM NOT EDUCATED IN EVERY ASPECT OF THE ALIEN UNIVERSE AND ITS SPIN OFFs, due to the length/detail of this it may seem contradictory, but I do have a Life) Here is My Theory on the Company's Motives" Through the traditional Alien series the Company has always violated sanctioned laws, practices and standards to get this thing. This implies that the Company is a separate entity from whatever Government is in place in the future. The Company is a massive monopoly (after the merger) and like today with any large company probably has influence in the Government, but the company is a global power in itself and separate from the Governing body. Im not sure the Government knows about the creature, hence WY's covert attempts at retrieval rather than joint efforts. The intent of the Company is to independently/illegally acquire a new bioweapon outside the government and would be essential if the Company wanted to threaten the Government and tyrannically control its outer space Colonies.  Since the Company has been responsible for the colonization of space, they could hold the Governing bodies of Earth and/or its colonies ransom for resources/political influence, under threat of subtly unleashing a super weapon, acquiring infinite resources for expansion and maintaining territorial control.  Prior to the Company's later motives in Alien, the Government in partnership with Weyland Yutani probably sends the Prometheus out as a science mission to uncover the origins of humanity.  The Company dispatches its own staff on the Prometheus to aggressively acquire or STEAL Alien technology from the Creators (Prometheus Myth/"It was so wrong"). Having failed, the Company would probably not risk dispatching another high profile expensive science mission joined with the Government, when they discover the value of what the crew have found and that the Prometheus mission is critical. Prometheus 2? could possibly be the rescue mission after Prom. 1 Fails like,  2010: (Space Odyssey) sequel.    Some of the more nobel remaining Prometheus crew members probably sabotage the aggressive attempts to retrieve the creature/technology, after survival chances dwindle, to prevent their finds from getting to Earth.  W.Y would not want to disclose any compromising information to the Government to prevent administration from stepping in to seize their potential finds and preventing them from solely owning exclusive property rights and patents resulting from the finds.  (Burke's reasoning in Aliens).  To prevent the threat of sabotage by any future crews, the Company would keep any future retrieval missions Top Secret, rendering the crew unaware and expendable under the discretion of a reliable supervising party (Burke was being blackmailed/puppeted by the Company due to his fatal order, and exploited his unexpendable advantage as a human to succeed,  Ash was pre-programmed Company android). (Bishop was a Government issued "Artificial Person" so uncorrupted, simply observing the found specimens)  The Company could then use their own Transports, resources, and employees to hide their activity. It would make sense then why the Company would later want to smuggle it through Quarantine under the guise of a freight transport or a Marine transport. The Company probably waited until a freight vessel like the Nostromo was near a convenient re-route point, could have even planted the "distress signal", providing the perfect cover to smuggle the creature back. After that failed the Company sent the colonists. When that failed the Government stepped in and sent in Marines, with Company employees piggy backing. The Company uses the unaware Marines for protection during retrieval and plan to later sabotage the mission to provide the creature with safe passage home.  The Colonial Marines in Aliens were used to maintain order of Government and prevent colonial rebellions, war, insurrections, etc. and were dispatched  by the Government not the Company. The Colonial Marines would be the only fighting force capable of intervention if Weyland-Yutani aggressively expanded, launched a Coup, or encroached on the Government interests.  The Colonial Marines were the most successful fighting force in the colonies (hence their egos), and were the only force that could aggressively take down Weyland Yutani, no traditional man-made weapon or fighting force would be able to defeat them. . .  Unless it wasn't man-made. There are theories that the Xenomorphs were Space Jockey invented weapons to wipe planets of their species. Weyland Controls the most violent unstoppable weapon species, It controls all governments and the "Alien Universe"