The Adeptus
Titanicus or Titan Legions are the third major land based force of the
Imperium along with the Imperial Guard and the Space Marines. The organisation
is often refered to as the militant arm of the Adeptus Mechanicus and
exclusively operates the mighty Titans.
Titans are gigantic bipedal war machines roughly humanoid in shape and
standing between 10 and 40 metres tall from the smaller scout titans to
the mighty Emperor class titans. The main task of a titan is to provide
a mobile platform for some of the heaviest weaponry in the Imperial arsenal.
The sheer massive bulk of a titan means that they can be used both defensively
as walking fortresses or to spearhead an assault. Titans are more than
just gigantic war machines they are seen as the embodiment of the Machine
God - living shrines and manifestations of the Emperor's power.
The Adeptus Titanicus is divided into several branches. The biggest and most common is the Divisio Militaris consisting mainly of battletitans divided into Titan Legions each of which are based arround a particular Forge World in the Imperium.
Less common is the Divisio Mandati which consists almost exclusively of the enormous Emperor Class Titans. The main purpose of the Divisio Mandati is to enforce the Pax Imperialis. The Divisio is mainly used as a propaganda tool - Few things are more scary than a legion of the largest land based warmachines in the Galaxy!
The Divisio Investigatus is a relatively small branch centered around a number of Forge Worlds. The Divisio develops and tests new types of weaponry for the Adeptus Titanicus. They don't usually deploy in an active combat role but from time to time it is deemed necessary to field test the new weaponry. The titans are usually highly customized with lots of special modifications to facilitate the experimental weaponry.
The last branch of the Adeptus Titanicus is the highly secretive Divisio Telepathica which operates the mysterious Psi-Titans. Few people within the Imperial Hierachy are even aware of their existence but Psi titans are perhaps one of the most advanced weapons in the Imperial arsenal and is often seen deployed along with the Grey Knights of the Inquisition.
Divisio
Investigatus - Divisio Telepathica - Specialist
Titans