Timeline is all screwed up

Rating: 3/10 (27 May 2017)

How is it that In Alien vs Predator, the Predators used the aliens as tools to train with in ancient times, yet the aliens were not fabricated until after the year 2100.
Why are they called aliens when they aren't aliens at all? The idea that the aliens are biological weapons is completely absurd, even with advanced tech. They should have left them as actual aliens.
So an android is responsible for attempting to eradicate humankind. Really? Didn't we have enough with this in Terminator?