In the sense of absurdist incongruity. IE, that fact that a sandbox World War II game, played as the Germans, has seen an alien invasion and conquest of earth, to a fallout-style reconquest of the planet, complete with mutants, robots, etc., to the formation of a One World Government that has traveled through a transporter in Moscow to the planet Sirius, which is inhabited by alien races from various planets, and which includes various fronts against Mercurians, Martians, etc., as humans take the fight to the alien homeworld.
In summary: a World War II AAR has now spanned hundreds of years, several mods, a couple planets, and a dozen alien species.
Please understand I mean this to be complimentary; if I wasn't enjoying it, I wouldn't be reading it or subbed - and I certainly wouldn't have read the first 46 pages in one sitting.
EDIT:
In other words, this is the most unusual, extended, and epic Hearts of Iron AAR ever!