So ive got it on PC, and i finished the campaign, loved it, ive heard people say "oh its shallow, and predictable" but honestly, its a typical marine story, x planet gets invaded by orks, marines come in and do their thing, IE: destroy everything and anything they can wile they wait for backup to arrive...
Multiplayer for PC: apart from lag issues..... and not being able to get into a game now cuz of their first minor patch.... multiplayer is awsome, all the classes feel balanced and work how i thought they would in the fluff, ill agree with what was said before: teamwork is your #1 friend in this game! get a strong rounded team, and u can dominate, get a team of all assault marines, and ur toast.
overall if they can put up dedicated servers instead of P2P for PC(like AvP got but sadly to late to save it) then this game will do awsomely for a long time to come! bring on exterminartus mode!