GW has gotten Amazon to remove a novel because it features space marines. Apparently, they think no one but them has the right to publish such material. It really pisses me off. I used to play 40k a lot, and I've read a ton of GW novels (many of which are actually quite good). But legal shenanigans like this really bug me.
As of right now, if you publish a novel featuring space marines, you could have it yanked because of GW. Heinlein and even earlier authors are likely rolling over in their graves.
Story in question
10 minutes ago