Book: Heavy Weapons.
This machine gun's incredible mechanism hints at the wonders of Golden Age technology. Smart rounds report their trajectories to the weapon, and a micro-transmat protocol recalls missed shots directly to the magazine.
Engineers decry the idea that all smart systems spontaneously develop personalities and awareness...but it seems undeniable that Super Good Advice manifests personality, memory, and a certain sass. The truth may lie in the weapon's connection to the legendary Hunter Pahanin, who witnessed the fall of Kabr and became terrified of traveling alone.