Celestial Hawks

The Celestial Hawks are a loyal Chapter of Astartes, who primarily attack Orks who are believed to be forming WAAAGHS!!! in a little known sector of Imperial space. They are descendant from the White Scars Chapter, as is evident by their love for fast assault. They deviate from the Codex-Astartes in several ways, but still hold true to it's teachings. Whilst they are considered to be a devout and loyal Chapter, they harbor a dark secret, one that if found out would surely lead to them being hunted down by their allies. They hunt down and murder all they suspect of knowing this secret with brutal efficiency. Whether they actually knew or not is of little consequence to them. They have been questioned by the Inquisition before, but they have received nothing from these questions.

Origins
Much is not know of this Chapter's origins, due to a very successful wipe by Inquisitors.The origins of this Chapter lay within it's dark secret. The secret is this; at one point in their history, around the 39th millennium, 900 of their warriors turned to Chaos. The only ones that did not was their 1st company. For 10 years they fought and eventually defeated their former brethren. They knew a Penitence Crusade would ruin them, so they withheld the dark secret, murdering anyone they thought knew the secret. They have since rebuilt their Chapter and have adapted their ranks to meet the great threat. The only ones who know of this secret outside the Chapter are 2 select Inquisitors, who have for some unknown reason agreed to keep the secret and assist in killing those that know, and a single Magos.

Organization
The Chapter is known to deviate from the Codex in a few ways. Firstly, they have different names for many things. Here is a list of the commonly used names and their name in the Celestial Hawks.
 * Squad-Flock
 * Sargent-Seeker
 * Company-Flock

They also use the term Elder before the titles of the men in the Chapter command squad (ex. Elder Apothecary).
 * Veteran-Elder

The second major difference, is that Sergeants are trained as basic Chaplains. This originated because of the rebellion initiated by many of their members. These Sergeants root out heresy at the squad level, keeping heresy down to a minimum. They still maintain standard Chaplains, but they all start from being a Sargent.

The third major difference is that instead of maintaining Assault Squads and Devastator Squads, they use Tactical Squads and outfit them as needed. This gives them the flexibility they need to combat the Orks on their terms.

The final major difference lies in their vehicles. Neophytes operate their vehicles, as part of their first step in training. This allows the other Asartes to effectively use a quirk in their gene-seed, one that only manifests itself in full fledged battle-brothers. It also allows them to field more marines in the actual battle, a tactic which has saved them many a battle.