I watched a few videos and gameplay wise it's similar to Space Marine (as in, you hack at people with chainsaws and shoot them with bolters) but right now it's like a Battlefield game set in the 40k universe. Doubt that the MMO part will come out anytime soon.
Yeah I played the game and it's pretty much that, Battlefield Space Marine.
Thing is, I read this is supposed to come out of Early Access soon but I don't feel like the game's anywhere near ready for that. It's a really rough game though I think it has plenty of potential.