>>12360062well, it is what it is, these books were never top literature, but sometimes the fun of the universe outweighs the mediocre writing. ultramarines didn't do that for me though.
honestly, probably pawns of chaos but it's very hard to find and very controversial among the fandom, since it reads like a book that was reskinned into a 40k book at the last second. i liked it because it blew my mind at the time since i was very unfamiliar with the races and didn't pick up on obvious clues.
>omg no way, you mean those were chaos, the evil dudes all along, nooooo waaaaaaaaay duuuuuuuudeas a second choice, i'd say lord of the night, but that's very limited in scope and not very representative of the setting so if you want some good military sci-fi, this ain't it.
storm of iron is decent enough and has enough action to be a good entry into the universe i think. and it's got actual propah fightan.
>>12360062>>12360069yeah this belisarius cawl guy is definitely pivotal to the new lore but i don't think you can just jump into his novel. haven't read it though, so i might be wrong. might be very noob friendly.
>>12360068>>12360078yeah this. horus heresy's pretty much a different universe from 40k, if you start with the first book (horus rising) and read at least the first three, then, you can move onto this one. otherwise you won't know what these giant robuts are fighting over.
like i said, if you want to read a book together, i'd go with storm of iron. if you want to just get into the setting together, you can do whatever you think is best. there's nothing set in stone in regards to that.