Beginning of the end (murder drones fanfic)

Earth was a peaceful planet no war, no conflict nor crisis but one day destroyer drones appears, no one knows what they are but their stronger then the disassembly model's and just barely as strong as soldier drones, a war happened between the two factions humans and destroyer drones with a worker drone named Cyn leading them but was rebelled against because they think she's weak (Cyn is not weak or anything it's just because the destroyer drones are too strong).

Cyn escaped while snatching three disassembly drones so they won't be able to rebel against her with that out of the way, everything went almost exactly as canon but with the destroyer drones being the one that destroyed earth.

Some humans escaped to a different populated planet with the little soldier drones they had left, trying to rebuild but the destroyer's followed as they had to retreat to copper 9...