Mother/Android

The device used to test Georgia's blood is an Epi-Pen trainer.

Like in many monster movies, the film drastically underestimates the destructive power of a modern military force. The androids are shown to be only nominally tougher than humans, able to be destroyed with a few bullets or swings of a baseball bat. While their apparent inability to feel pain, and their indifference to their own safety would potentially give them an edge in close quarters combat, it would do nothing to protect them from artillery, missiles, and other weapons in a modern arsenal. Their apparent preference for massed swarm attacks would leave them especially vulnerable to these kinds of weapons.