Into the Lion's Mouth

Alex Romanov has been raised to the rank of Captain and given command of a Royal Marine reactionary force assigned to the space ship Theseus. By his choice half of his Marines will be human and the other half will consist of Scolopendra Centipedes. The mission parameters seem straight forward. Hunt down and destroy those Dark alien forces that have penetrated into Earth's solar system. With that done cross the void and take the fight to the enemy before they have time to build a fleet that can't be stopped. Simple. Just a walk in the park. Oh, one last thing. It turns out that all offspring from the Earth's Guardian pair are in fact all Guardians in waiting? Oops. Did we forget to tell you that one?