As far as I can tell from the WN, and I won't be using spoilers as it seems to be openly discussed here, Imperial ships named after heroes all carry a small amount of biological material from their namesake as a sort of superstition. The ship used that to clone the two she sent down to the planet, which freaks Alan out due to the ethical ramifications. They're not androids, they're full clones of the original military officer we had the flashback of earlier. Though in the WN they seemed much younger than they do here.