World Eaters
The World Eaters, worshipping Khorne, are the second angriest group of marines ever, second only to the Angry Marines. Their Primarch's name is a pun on the fact that they're so damn angry (Angron). They use Chain Axes and Pistols, and nothing else, it is unknown who pilots their tanks but they still have transports and there are Khornate Titans.
Legion History
Before they were reunited with their Primarch, Angron, they were known as the War Hounds. When they were reuinited with their Primarch, they changed their named to the World Eaters, the 9th Legion reunited. Angron added implants and neurosurgery (Partial Lobotimisation) to remove the ability to feel or care about fear, but increased their Aggression to large amounts. The Emperor banned this practice when the World Eaters exterminated all life on a planet in one night. Horus, seeking to turn the Primarchs to his cause, didn't have to do much to get Angron to side with him, as all it took was to tell him that the Emperor was weak and to appeal to his martial pride. They were on Isstvan III, and Isstvan V, where Horus led the loyalists into a trap. When the Legions of Horus attacked the Imperial Palace, the World Eaters were at the forefront of the Chaos Marines, seeping into the breach and killing the most inside the palace. Sadly, they lost when Horus was killed aboard his flagship, and the World Eaters with Angron fled to the Eye of Terror, where Angron was elevated to Demon Prince.
World Eaters Schism and Kharn
A hell of a guy by the name of Kharn comes from this Legion. Hell of a guy that Kharn is...even if he single handily split his legion into countless warbands.
The World Eaters are not organized anymore, as Kharn seperated the Legion on Scalathrax when the World Eaters were kicking the Emperors Children's Legion's asses. Kharn got pissed off at his fellow Legionnaires for taking shelter from the Ice Cold Darkness, because the cold stuff on Scalathrax would freeze you to death. Kharn took a flamer and torched everyone's shelters and started killing everything in sight, while his fellow brothers fought for whatever shelters were left, even after kicking the Emperor's Children's asses off the planet. The World Eaters are now fractured into Warbands, who sell their services to other Chaos Armies for the lulz.
Catch Phrase
World Eaters use the most used catch phrase in 40k next to "WAAAAAAAAGH!!!!" or something for the Emperor. They scream BLOOD FOR THE BLOOD GOD in combat, while taking skulls for the skull throne. They even say "BREAK THEIR BACKS" in the heat of combat.
Noteworthy engagements
- The Cleansing of Arrigata (Pre-Heresy shit)
- Isstvan III
- Isstvan V
- Siege of the Emperor's Palace
- Most of Failbaddon's Black Crusades
- Angrons Dominion of Fire campaign, where 50,000 World Eaters and Angron, wasted over 70 Imperial Sectors in two Centuries.
General need to know information
The World Eaters are all Berserkers according to the flop of a codex that is Chaos Space Marines 4.0, The World Eaters are all Berserkers, thanks to the partial lobotimization. They use Chain Axes, which are just close combat weapons to 4.0 now, and used to be some of the most brutal hand to hand units in the game, but lost their feel no pain, and have to be mechanized or they won't be effective. For Lords, the mark of khorne with wings turn them into the best Lords available to use, mainly with a Demon weapon or with Duel Lightning Claws. However, because GW sucks at maintaining army lists besides Codex: Ultramarines, everyone will try to argue with you that two Lash Princes are the optimal choice to take. Also, the World Eaters killed all their Librarians and Sorcerers in the name of Khorne.
The Helmets that Berserkers wear, are representations of the Khorne Skull icon, or the mark of Khorne. It's like a cool stylized eight thing. Khorne's favorite number is eight, so every Khornate Warband transfigures it's marines into squads of 8 and it's multiples. Scary shit.
It is said that if an Angry Marine would turn to Khorne, that a World Eater would easily notice the laughable poser shit and tell them to fuck off until their anger breaks such pedestrian limits as infantile swearing and rude hand gestures and anachronistic 'hip' slang.
Summary
Ruthless, bloody, and awesome. They are the most angry and brutal Space Marines out there, even if their latest rules suck.
Imperial equivalent are the Space Wolves in the canon, and Angry Marines on this site.