The thing I love most about the Warhammer 40k Space Marine game, starring one Captain Titus of the Ultramarines, is that it explains NOTHING. AT ALL. This game goes "well you wouldn't be playing me if you didn't know what Warhammer was, right?" and they would probably be mostly correct except that no, actually, I didn't even know what a space marine was when I first played, way way back in the early 20teens.
The game dumps you into a world where you play as a Captain of the Ultramarines. What is an Ultramarine, you ask? Why it's Captain Titus of course! and Leandros and Sergeant Sidonus. Are there more of them? Maybe, who knows! What's a Blood Raven? It looks like you, but different colors, and there are also only 4 of them. Are all of the space marines just squads of 4? Did you used to have a fourth and he died? Are you an army or a strike force? Who knows! The game for sure isn't gonna tell you!
What's an "inquisitor?" Well, it's Drogan of course! The one you have you save! And he's a psyker see. (What's a psyker, you ask? Well, it's what the Inquisitor is! Is it the same thing? NO IDEA! Just keep killing!) Now, is he also a space marine? Hard to say! Are space marines big, or just people in like, really big armor? WHO KNOWS! Not you, now kill some orks! Why are we killing orks? Because that's your mission of course!
And oh, hey, you're on a Forge World, fighting through the factories of the mechnanicum. What are these things? Well, you're on them and in them, what else do you NEED to know?
My favorite bit is when the Forces of Chaos show up, and a demon rips his way out of the fabric of reality, and it's just like "oh yeah, did we forget to mention you might have to fight demons? OOPS! Well, they pop as delightfully as an ork, so hop to it!" and then they just give you a different sort of Really Big Gun you can use to get on with the killing. Leandros seems concerned, the Inquisitor and Sidonus don't (and who outranks who? The regular men and women call you "Lord" but you call the Inquisitor "Lord" and all of you seem beholden to a "God-Emperor" (and is he an emperor or a God, or something of both?) but the only thing that matters is whether you chose a Plasma Rifle or a Lascanon to get through this next round, so who are you to question anything?
When the Inquisitor tells you to "meet at the monument" you just do, even though the monument is a nondescript hooded figure that says nothing and means little (except that these people do have monuments to something, and is it a saint? a martyr?) and so you go there anyway because there are more greenskins coming and you are about to get a thunderhammer (and maybe a jumppack, though those never last long.)
There are skulls sort of everywhere and everything looks like some sort of outsized Gothic cathedral and the voice that drones on and on sounds British and clipped and the words she says are dystopian and strange but there are always more orks to kill (and demons and men who look like you but aren't you, and are they really men behind those masks anymore, spilling from yawning purple clouds and splattering the walls with blood before vanishing i a lingering miasma) so you just keep going.
At one point a man who is not a man offers you the chance to become a god, to become a creature of whatever form you wish, and you still aren't entirely sure what the ultramarines are (and who is Lord Guilliman and his tenants your battle brother holds so dear) but there is a certainty in your refusal, a rigid belief that you won't fall because you can't fall (and did the man who is not a man who offers you a godhood fall? or has he always been like this?) but you deny him anyway (because you can, because you must, because you are an Ultramarine or because you believe in something more?) and you fight and fight and fight and kill and kill and kill and kill and kill and bleed until perhaps there is no blood left (your armor is huge and cumbersome and the floor shakes when you land but you move with grace and speed and roll and dodge and kill and live and what are you even, really?) and in the end you have saved a world and when you say "More than you know" you mean it with your whole heart because you are human, you are, you bleed, and you tire, and you grieve and you mourn (but are you human, really? if you can touch the darkness and not give in, not turn aside, if men call you angels and demons speak of gods) and it all means nothing because men you are you but not you show up, men in black and white (they look like Holy Orders, Hospitallers or something close) and a man who is an Inquisitor who is not Drogan, who speaks softly but firmly and they take you away and Leandros looks on with fear and maybe regret (and you do it to save Mira, you think, her and all the others you died a thousand times to save except you lived, and she lived, and they call you Angels and if you can't die maybe it's true, or perhaps you love them, all of them, the men and women who look at you with awe and fear and love, and isn't that being an Angel, in the end?)
Anyway, I've played this game thrice through (easy, medium, hard) and read all the codex and I still, to this day, do not know what happens at the Siege of Terra and what happens to make 30k 40k, and I think that's really sort of beautiful, in the end.
