A mech cluster shows up damn near the colony. As it stands, 3 centipedes are already threatening enough, but most critically it has a 6 day countdown, yet Luna is at the third trimester of her pregnancy and I don't want to send her into combat like this. I really hope she gives birth before the cluster activates.

In addition, we have no EMP weapons and no components to craft them, so these centipedes will be quite threatening if we don't engage them with the melee troops(one of which is luna).