It didn’t happen over night, a man was survived somehow and carried over to a khintu base, which just stayed covered up, that we never noticed him ever. Maybe he made himself a simple family unit hiding in communistic khintu people. While we never felt him seriously he was hiding in food and microbiology. We only thought we were just arrogant enough to not think about an enemy, that would never show up, because we only believed in our exosuits, computers, and weapons.