Sure. There's a story about a novice Chaos follower in a Black Crusade. He is just starting to understand the powers of Chaos. He gets involved in a small skirmish against an Imperial outpost. It's a simple story that shows the basic elements of a Black Crusade like the chaos vs order dynamic. Another one is about a young warband's first major engagement during the Black Crusade. It's not too complex and gives a good overview.
For beginners, there's a story about a Chaos initiate who is on his first Black Crusade. He is assigned to a group that is supposed to raid an Imperial supply depot. Along the way, he discovers the different types of Chaos warriors and their abilities. The story also shows how the Imperium defends its assets. Another good beginner story is about a Chaos - inspired uprising on a planet during the Black Crusade. It starts with a few individuals being influenced by Chaos and then spreads, and the Imperium tries to quell it. This story gives an understanding of how Chaos can infiltrate and disrupt a seemingly stable society.
One interesting Black Crusade story could be about a lone Chaos Space Marine who manages to infiltrate an Imperial stronghold. He uses his wits and the powers granted by the Chaos Gods to cause chaos within. Another might involve a group of heretics banding together during a Black Crusade, each with their own motives for following the path of Chaos. There are also stories of battles where the forces of Chaos face off against the Imperium in epic and brutal confrontations during the Black Crusade.
A story where a group of Black Crusade players managed to turn a previously loyal Imperial world into a Chaos - ruled hellhole. They did it by manipulating the planet's religious leaders and causing civil unrest. It was memorable because of the elaborate schemes they used, like spreading false prophecies and causing famines to make the people lose faith in the Emperor.
I'm not entirely sure specifically as I haven't read every story in it. But generally, in Black Library works, there could be tales of heroic battles, epic quests, and the struggles of different factions in the Warhammer universe.
In some Black Crusade stories, we see the internal politics and power struggles within the Chaos legions. For example, different warbands might compete for resources or try to gain the favor of a powerful Chaos lord. A particular warband might try to complete a specific mission during the Black Crusade to prove their worth, but they face betrayal from within their own ranks as another warband tries to undermine them for their own gain. This complex web of relationships and betrayals makes for very engaging stories.
One of the well - known 'black crusade novels' is 'The Talon of Horus'. It delves deep into the dark and chaotic lore of the Black Crusade, following the story of Horus' followers. Another great one could be 'Black Legion'. It gives a detailed look at the Black Legion's activities and their unholy crusades across the galaxy.
There could be a story where a group of Black Crusade warriors uncovers an ancient and powerful artifact. This artifact could be a weapon or some kind of relic with the potential to change the balance of power in the ongoing war. They then have to fight off other Chaos factions as well as Imperial forces who also learn about the artifact. The whole process involves a lot of battles, betrayals among the Chaos ranks, and unexpected alliances.
One interesting story could be about a Chaos Space Marine who starts as a low - ranked follower but through a series of dark deeds and battles, he rises in power. He manages to steal an ancient and powerful artifact from a loyalist stronghold, which earns him great favor among the Chaos Lords.
Abaddon the Despoiler is an important character as he leads the Black Crusade. There are also various Space Marine characters who oppose him.
There are likely to be Chaos Lords as main characters on the side of Chaos. Maybe a powerful daemon prince leading the charge.
There could be brave warriors. They are likely to be at the forefront of the crusade, facing the challenges directly.