Editing Mourning Sons (section)

=The Chapter Itself=

Despite being a 21st founding Chapter, the Mourning Sons were spared the ill fates that most Chapters of this founding experienced. While most suffered horrid mutations, bad luck, Inquisition approved campaigns of extermination or turned themselves to worship the Dark Gods of Chaos, the Mourning Sons found themselves among those who were lucky enough to simply gain a minor mutation.

This mutation is that of the Occulobe, and even then it’s unique to the Chapter, for it is from it that the Mourning Sons got their name. The Occulobe functions in a way that requires the marines to produce more moisture in order to make it function optimally. The drawback of it is that the marines are seen literally weeping in a constant manner, resulting in them to have a sorrowful look.  Of course only a ignorant fool would think of them as whiny or mentally and emotionally unstable, for there is no evidence that the mutation causes this kind of drawbacks.

On the other hand, this mutation also makes the marine’s Occulobe work in a abnormal fashion,allowing the Mourning Sons to see their surroundings in a way not achievable by marines with normally functioning ones. 
The Scouts and fully fledged Battle Brothers can perfectly read the body language of any being they are looking at, while the more senior members can quickly adapt to any tactics used by the enemy the chapter is currently fighting. In the case of the Chaplains however, it is said that the mutation gives them the ability to look into the souls of living beings in order to determine their true nature. This is actually linked to their legendary figure by the name of Chaplain Jeremiah that was first to have this unique mutation to appear. With this, the marines are considered somewhat living lie detectors. The Librarians of theirs are even more potent, since with combining both the mutation and their powers, they are considered to be of irreplaceable use as interrogators.

The mutation however doesn’t work well with Dreadnoughts, since the brothers encased inside the sarcophagus are virtually blind and must always be accompanied by two Scouts that are their eyes.

Strangely, their creation is tied to the destruction of the planet of Innaculaba. The Chapter fought there ferociously in order to protect the planet from [[Chaos]] incursions that were ignited by <s>[[Alpha Legion|Alpha Legionnaires]]</s> {{BLAM|HERESY!!! No such Chaos Legion exists.}}{{BLAM}}...Chaos Forces. The planet was devastated and the Chaos Marines disappeared. This left the Sons with a deep ire towards the Chaos Marines, causing them to hunt their arch-nemesis whenever they hear any rumour about a coming Chaos incursion. After that, the Crusading Chapter fought Chaos multiple times (not only enemies of non-Chaotic origins), using their mutation to better combat the threats they met. The brothers soon discovered that this was incredibly useful when fighting the manipulatory forces of Tzeentch followers, leaving none of the schemers to mount a proper counter-tactic because of the adaptability the Mourning Sons gained thanks to their mutation.

When battling on Imperial Worlds, the Chapter will always prioritize the safety of a world's civilian population. After the battle, the marines will always stay to rebuild the world they were fighting on and help the population to put themselves together, all while praying for forgiveness between reconstructions and helping civilians. This made them to be on very good terms with the Salamanders Space Marines. Both Chapters even fought alongside each other on some occasions. The Sons' attitude towards the civilians won a great measure of respect from the First Founding Chapter when both sides helped out with reconstruction projects.

The only known weakness of the brethren is their overconfidence in that they can do anything. Although they try their best in their duties and responsibilities, most of what they do is only a short term solution. As a Crusading Fleet, they can try to make the best what they can before departing further. Still, despite that, they try their best in ensuring that those in need will not be avoided.