It was never known to not be in the online co-op portion of the game, rather a totally separate multiplayer map/mode. This was not revealed until this thread was made and those Tweets.
Lmaooo.
You should have seen the tech demo thread last year when it was proclaimed as, 'real', and 'told ya so'.
Comes full circle now, and more in line with expectation/reservations some had, and were being flamed for.
A special multiplayer map only for this mode. The core/campaign game... NOPE!
Good try. Really tried trolling over year old news.