The Bizarre Adventures of Cloud Hammer

In the fortieth millennium of darkness, six Cloud Hammers were brought into this dark universe to save mankind, so they -
"Can we form the Second Empire forever? Vadasi!"
"What is it that goes in as one thing and comes out as a bucket? The answer is Sanguinius~!"
"Why did the false emperor conceal the history of his son-in-law?"
"One million horses, Psychic Blast Fist!"
"Brothers! Today I will show you a green-skinned show!"
"Four Gods, you are just Ji Bo! Look at your half-human, half-ghost appearance. Come to the real universe and I will take off your hoods!"
Well, anyway, this is the story of six Cloud Hammers who have different levels of knowledge about Warhammer 40k and adventure in the 40k universe, saving humanity in the process.
This incident is also recorded in the Codex Astartes.