Phaa

Phaa is a moon that orbits the Imperial world of Tallon Prime. This orbital satellite sits above the planet, which acts as a primary base of operations for elite Militarum Tempestus regiments of the Psian Venatores.

Background
The base of operations for the Psian Venatores is the moon of Phaa, which circles the world of Tallon Prime, reconstructed into a large space station capable of housing a handful of Imperial Cruisers. It's thought that the moon could very well defend itself against a full frontal assault. The depths of the moon contain a maze-like section intended for training for the recruits to operate in a pitch black environment with no sort of light, littered with xenos wildlife.

Adjustable levels of gravity make this base perfect for training in a Zero-G environment. Actually swapping between Zero-G and standard Tallon Prime at random intervals to keep the Scions on their toes, prepared for any environment. The deepest depths use captured Xeno wildlife in the metal halls, similar environments to a space hulk. This dark area is sectioned off from the rest of the base to ensure complete isolation for the recruits during their training.

The quarters inside the moon are considered higher quality than typical barracks. Bunk beds and work desks are all that soldiers are given. Drills are run every day for those who serve on board Phaa, these can take place inside or outside the base.

Docking bays are used by the Regiment and the Imperial Navy, or even the Adeptus Astartes. Few members of the Tech-Priests of Roitheta have ventured to the moon to keep it maintained. Satiating their own curiosity at the same time. Even the Astartes of the Omni Legion have used the moon base during the years they come to Tallon Prime.