This is really good dude. Im using your music when Im modding/playng Battlefleet Gothic Armada 2 (Skalgrim mod) and having more "xenos" related music is really nice. This is "game music" if I ever heard it. You should think about a job in the game industry.
Had this playing in the back of my mind while reading the later chapters of the Kasrkin novel. Definitely fits the vine of trying to exfiltrate a necron tomb without getting spotted by Canoptek Spyders or Emperor forbid those damned Flayed Ones, especially when imagining thosr harsh scanning noises being in sync with spyders projecting beams to find targets.