>>64906806Honestly no. Nearly all 40k stories are complete garbage. GW are SPECTACULAR worldbuilders, but they are just not competent at writing deep or interesting characters.
The space marines are literally copypastes of each other.
>"honor and duty and duteous honor and honorous duty ye olde foule xeno mankind foul foul foul creatah i learn how to speak english squatting in yon bathroom of an underfunded community theatre alas i am the emperor's honor's mankind, ye foul indutious xeno"There you go. You now have the personality of every Astartes ever.
GW themselves admit the 40k universe is really about the setting first. You can peruse the supplemental literature if you want, but set your expectations low.