Yeah but 40k Fantasy is it's own thing and doesn't have sweet Space Marines, unless you acknowledge the Timescape. And cool kids don't do that. You wanna be cool right?
Can they even resist the Ring though
A quick review of the lore says no…
Wouldn't that be 50/50?
Sister of battle ring bearer? They might be even better than hobbits
Sister of silence?
The Astartes would totally be on the side of Sauron. They're brainwashed child soldiers filled with xenophobia and hate. Definitely makes more sense for them to be Orcs - actually that's basically what Orcs are in Tolkien.
Or are they silmarillian era elves
Ooo, that could be too.
Astartes vs Sauron, who would win?
I think the Astartes would make Sauron look like the good guy
"Then it is settled," Elrond said at last. "You shall be the Squadron of the Ring."