Warhammer 40,000 is a science fantasy war game with an over-the-top aesthetic that coined the term "grimdark." It is awesome, and has consequently served as fodder for fan art. One example of this fan art is the YouTube series, If the Emperor Had a Text-to-Speech Device (TTS for short), a comedic and vulgar yet surprisingly lore-heavy take on possible story progression from the standard narrative stagnation.
Then Games Workshop started advancing their storyline, too, but the TTS-verse is still my personal headcanon. Too little, too late, GeeDubz!
Anyhow, the TTS series had a spinoff following several characters in a parallel adventure in the "BroTrip Crusade," and then this actual play podcast/vidcast series spun off from BroTrip. It uses the new Wrath and Glory RPG rules, which are explained as they apply in the course of the game.
if you enjoy RPG podcasts, funny banter, and sendups of Warhammer, check out WarHams! Be aware that there are numerous F-bombs and other crude humor. Click here for the playlist.