I and my cuisines love the first two aliens movies. After that it went way off course.
Still thinking about the alien ship on LV4 planet in my eyes looked like a transport ship or a prison ship? The on board aliens crew flying the dam thing may have had the duty to move the egg infested ship from A to B. Or simply keep it from going near any civilized galactic societies at that time.
I guess one of the crew was stupid and became a host. Then all hell broke loose and they crashed. They put out a warning to keep other species from boarding that ship.
But humans are as curious as cats and stupid too. Unfortunately we don't have nine lives.
All good theories but that is my views on that alien transport ship.
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