Military science fiction is a subgenre of science fiction that depicts the use of science fiction technology, including spaceships and weapons.

They have launched precision guided missiles, been “passed off” between different remote human operators 900 miles apart, and, in one war game.

The game features two spaceships, "the needle" and "the wedge", engaged in a dogfight while maneuvering in the gravity well of a star. 

The Space Marines or Adeptus Astartes are foremost amongst the defenders of Humanity, the greatest of the Emperor of Mankind's warriors.